fastmail/authentication_milter

Child process seems keep crashing

Closed this issue · 9 comments

It appears me to that child processes seems keep crashing without any trace.

May 11 11:46:29 mx1-2019 postfix/cleanup[5395]: warning: milter unix:/unixsock/dmarc_milter.sock: can't read SMFIC_BODYEOB reply packet header: Success

Enabling debug log doesn't give me more insight either.

[root@mx1-2019 mx-deployment]# egrep 'CCB958002F' maildebug
May 11 11:46:27 mx1-2019 postfix/smtpd[5577]: CCB958002F: client=uspmta173210.emarsys.net[195.54.173.210]
May 11 11:46:28 mx1-2019 postfix/cleanup[5395]: CCB958002F: hold: header Received: from uspmta173210.emarsys.net (uspmta173210.emarsys.net [195.54.173.210])??by mail.example.com (Postfix) with ESMTPS id CCB958002F??for <example@example.com>; Tue, 11 May 2021 11 from uspmta173210.emarsys.net[195.54.173.210]; from=<www5@xpressus.emarsys.net> to=<example@example.com> proto=ESMTP helo=<uspmta173210.emarsys.net>
May 11 11:46:28 mx1-2019 postfix/cleanup[5395]: CCB958002F: message-id=<0.0.8.2D9.1D74618370D15C4.0@uspmta173210.emarsys.net>
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: L: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: N: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: BAE278002B: SetSymbol: B: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: receive command B
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: process command B
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: CALLBACK: Body
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: Timeout set: Type: content, Section: 300000000, Effective: 300000000
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: Timeout set: 300000000
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: CALLBACK: Body DKIM
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: Timeout set: 
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: send command c
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: receive command D
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: process command D
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: SetSymbol: E: i: CCB958002F
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: receive command E
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: process command E
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: CALLBACK: EOM
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: Timeout set: Type: content, Section: 300000000, Effective: 300000000
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: Timeout set: 300000000
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: CALLBACK: EOM DKIM
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299991444
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299979984
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: DKIMResult: pass
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: DKIMSignatureType: dkim
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: DKIMSignatureDomain: ctgoodjobsnews.hk
May 11 11:46:28 mx1-2019 authentication_milter[131]: CCB958002F: DKIMSignatureIdentity: enews@ctgoodjobsnews.hk
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMSignatureResult: pass
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMSignatureType: dkim
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMSignatureDomain: emarsys.net
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMSignatureIdentity: @emarsys.net
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMSignatureResult: pass
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299889884
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299882977
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299876568
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299870341
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicy: accept
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyString: o=~; n=http://www.ctgoodjobs.hk/english/terms/privacy.asp
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyLocation: ctgoodjobsnews.hk
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyName: sender
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyDefault: no
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicy: accept
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyString: o=~
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyLocation: 
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyName: author
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyDefault: yes
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicy: accept
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyString: 
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyLocation: 
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyName: ADSP
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DKIMPolicyDefault: yes
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: CALLBACK: EOM DMARC
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Object destroyed: dmarc
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Object set: dmarc
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Object set: dmarc
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299829172
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299827781
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299820351
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299819150
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Handler timeout set: 10100000
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout reset: 299812994
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Object set: dmarc_result
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Object set: dmarc_results
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DMARCCode: pass
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DMARCDisposition: none
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DMARCSubdomain: no
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: DMARCPolicy: reject default
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: CALLBACK: EOM ReturnOK
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: CALLBACK: EOM Sanitize
May 11 11:46:29 mx1-2019 authentication_milter[131]: CCB958002F: Timeout set: 
May 11 11:46:29 mx1-2019 postfix/cleanup[5395]: warning: milter unix:/unixsock/dmarc_milter.sock: can't read SMFIC_BODYEOB reply packet header: Success
May 11 11:46:29 mx1-2019 postfix/cleanup[5395]: CCB958002F: milter-reject: END-OF-MESSAGE from uspmta173210.emarsys.net[195.54.173.210]: 4.7.1 Service unavailable - try again later; from=<www5@xpressus.emarsys.net> to=<example@example.com> proto=ESMTP helo=<uspmta173210.emarsys.net>

@leeyc0 can you please send me your config.

authentication_milter.json.txt
Attached the config file.

Thanks, is there anything of interest in /var/log/authentication_milter.err?

I don't think there is anything interesting.

Tue May 11 13:12:57 2021 authentication_milter[8] run as user=root group=root
Tue May 11 13:12:57 2021 authentication_milter[8] Chroot to 
Tue May 11 13:12:57 2021 authentication_milter[8] listening on unix socket=/unixsock/dmarc_milter.sock backlog=20
Tue May 11 13:12:57 2021 authentication_milter[8] setting umask to 0000
Tue May 11 13:12:57 2021 authentication_milter[8] ==========
Tue May 11 13:12:57 2021 authentication_milter[8] Starting server
Tue May 11 13:12:57 2021 authentication_milter[8] Running with perl v5.26.3
Tue May 11 13:12:57 2021 authentication_milter[8] ==========
Tue May 11 13:21:16 2021 authentication_milter[48] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 13:21:19 2021 authentication_milter[23] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 13:56:57 2021 authentication_milter[207] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 14:05:06 2021 authentication_milter[230] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 14:05:07 2021 authentication_milter[225] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 14:05:39 2021 authentication_milter[218] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 14:05:41 2021 authentication_milter[233] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 14:05:42 2021 authentication_milter[237] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 14:05:42 2021 authentication_milter[236] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 15:01:37 2021 authentication_milter[355] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 15:13:42 2021 authentication_milter[362] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 15:17:23 2021 authentication_milter[384] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 15:38:46 2021 authentication_milter[437] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 15:45:40 2021 authentication_milter[432] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 16:00:59 2021 authentication_milter[479] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 16:11:07 2021 authentication_milter[494] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 16:45:28 2021 authentication_milter[585] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 17:13:34 2021 authentication_milter[656] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 17:26:36 2021 authentication_milter[683] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 17:49:57 2021 authentication_milter[711] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 18:02:12 2021 authentication_milter[740] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 18:06:26 2021 authentication_milter[767] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 18:16:36 2021 authentication_milter[805] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 18:31:31 2021 authentication_milter[832] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 18:32:19 2021 authentication_milter[844] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 18:32:37 2021 authentication_milter[848] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 18:50:08 2021 authentication_milter[876] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 18:54:30 2021 authentication_milter[903] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 19:03:00 2021 authentication_milter[885] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 19:33:36 2021 authentication_milter[971] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 19:39:05 2021 authentication_milter[988] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 19:41:00 2021 authentication_milter[996] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 20:03:56 2021 authentication_milter[1041] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 20:34:05 2021 authentication_milter[1094] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 21:04:57 2021 authentication_milter[1140] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 21:16:20 2021 authentication_milter[1156] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 21:24:51 2021 authentication_milter[1192] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 21:32:13 2021 authentication_milter[1193] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 21:35:52 2021 authentication_milter[1190] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 21:55:13 2021 authentication_milter[1234] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 22:26:45 2021 authentication_milter[1306] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 23:14:30 2021 authentication_milter[1384] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Tue May 11 23:24:52 2021 authentication_milter[1391] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 00:01:31 2021 authentication_milter[1452] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 01:08:29 2021 authentication_milter[1580] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 01:13:37 2021 authentication_milter[1610] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 01:43:04 2021 authentication_milter[1655] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 01:46:29 2021 authentication_milter[1675] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 01:56:01 2021 authentication_milter[1696] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 02:14:13 2021 authentication_milter[1731] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 02:28:58 2021 authentication_milter[1746] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 02:30:43 2021 authentication_milter[1767] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 03:04:59 2021 authentication_milter[1802] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 03:47:13 2021 authentication_milter[1889] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 04:19:50 2021 authentication_milter[1940] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 04:54:28 2021 authentication_milter[1987] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 05:35:07 2021 authentication_milter[2070] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 06:09:37 2021 authentication_milter[2108] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 06:44:43 2021 authentication_milter[2149] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 07:22:59 2021 authentication_milter[2219] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 07:31:52 2021 authentication_milter[2264] Warning: Use of uninitialized value in join or string at /usr/local/share/perl5/Mail/DMARC/Base.pm line 285.
Wed May 12 07:31:52 2021 authentication_milter[2246] Warning: Use of uninitialized value in join or string at /usr/local/share/perl5/Mail/DMARC/Base.pm line 285.
Wed May 12 08:01:27 2021 authentication_milter[2310] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 08:02:39 2021 authentication_milter[2309] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 08:41:01 2021 authentication_milter[2392] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 08:58:21 2021 authentication_milter[2435] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 09:05:19 2021 authentication_milter[2434] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 10:01:44 2021 authentication_milter[2612] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 10:01:47 2021 authentication_milter[2607] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 10:01:48 2021 authentication_milter[2599] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 10:04:31 2021 authentication_milter[2608] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 10:07:04 2021 authentication_milter[2637] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 10:07:06 2021 authentication_milter[2632] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 10:17:25 2021 authentication_milter[2638] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 11:00:18 2021 authentication_milter[2763] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 11:01:51 2021 authentication_milter[2788] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 11:03:31 2021 authentication_milter[2792] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 11:06:00 2021 authentication_milter[2790] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 11:09:04 2021 authentication_milter[2802] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 11:11:05 2021 authentication_milter[2751] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 11:34:24 2021 authentication_milter[2839] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 11:41:09 2021 authentication_milter[2867] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 12:02:36 2021 authentication_milter[2908] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 12:03:46 2021 authentication_milter[2919] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 12:11:20 2021 authentication_milter[2900] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 12:15:53 2021 authentication_milter[2939] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 12:41:31 2021 authentication_milter[2990] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 13:00:59 2021 authentication_milter[3035] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 13:01:02 2021 authentication_milter[3030] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 13:16:13 2021 authentication_milter[3066] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 13:34:48 2021 authentication_milter[8] run as user=root group=root
Wed May 12 13:34:48 2021 authentication_milter[8] Chroot to 
Wed May 12 13:34:48 2021 authentication_milter[8] listening on unix socket=/unixsock/dmarc_milter.sock backlog=20
Wed May 12 13:34:48 2021 authentication_milter[8] setting umask to 0000
Wed May 12 13:34:48 2021 authentication_milter[8] ==========
Wed May 12 13:34:48 2021 authentication_milter[8] Starting server
Wed May 12 13:34:48 2021 authentication_milter[8] Running with perl v5.26.3
Wed May 12 13:34:48 2021 authentication_milter[8] ==========
Wed May 12 13:56:04 2021 authentication_milter[51] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 14:02:07 2021 authentication_milter[88] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 14:02:58 2021 authentication_milter[77] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 14:07:36 2021 authentication_milter[96] Child exiting
Child already has a parent at /usr/local/share/perl5/Mail/Milter/Authentication/Handler.pm line 2043.
	...propagated at /usr/local/share/perl5/Mail/Milter/Authentication.pm line 867.
Wed May 12 14:07:05 2021 authentication_milter[97] Warning: Use of uninitialized value $hash_algorithm in concatenation (.) or string at /usr/local/share/perl5/Mail/Milter/Authentication/Handler/DKIM.pm line 267.
Wed May 12 14:07:05 2021 authentication_milter[97] Warning: Use of uninitialized value $hash_algorithm in concatenation (.) or string at /usr/local/share/perl5/Mail/Milter/Authentication/Handler/DKIM.pm line 299.

(Sorry for the error log time does not match the debug log, since the error old log is already deleted. But the content is just about the same)

Thanks for that, can you try this build and let me know if it helps.
Mail-Milter-Authentication-3.20210512.tar.gz

OK let me try, but probably not fast, we have a change management process that need to be followed.

Deployed the new version, looks promising, no more crashes. Will keep monitor for a more day before I close it.

Please re-open if not fixed, thanks for the report and the logs.