YunoHost Roundcube Email Blocking

[NathanRHD]

Hi, trying to send an email to my yunohost address ("A") from another email ("B") results in this error.

I guess this is that yunohost is blocking emails from "B", but maybe not!

Is there any way of adding emails from "B" to an allowlist? (either via roundcube or elsewhere in yunohost?)

Best wishes,

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  XXXX@XXXX.com
    host XXXX.com [XXX.XXX.XX.XXX]
    SMTP error from remote mail server after RCPT TO:<XXXX@XXXX.com>:
    554 5.7.1 Service unavailable; Client host [XX.XX.XXX.XX] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?XX.XX.XXX.XX
Reporting-MTA: dns; ssdrs5.layerip.com

Action: failed
Final-Recipient: rfc822;XXXX@XXXX.com
Status: 5.0.0
Remote-MTA: dns; XXXX.com
Diagnostic-Code: smtp; 554 5.7.1 Service unavailable; Client host [XX.XX.XXX.XX] blocked using bl.spamcop.net; Blocked - see https://www.spamcop.net/bl.shtml?XX.XX.XXX.XX

[alexAubin]

Closing because this is likely not a roundcube issue, the server is on spamcop blacklist and shit is expected to happen when servers are on blacklists ...