SMTP syntax errors

[DerDakon]

It's "MAIL FROM:<…>" and "RCPT TO:<…>", i.e. no spaces between colon and opening brace, see RfC 5321.

[mludvig]

Thanks for the report, you're indeed correct. Out of interest - what
SMTP server rejects the space? I haven't had any other reports about that...

Michael

On 15/01/16 11:46, Rolf Eike Beer wrote:

It's "MAIL FROM:<…>" and "RCPT TO:<…>", i.e. no spaces between colon
and opening brace, see RfC 5321
https://tools.ietf.org/html/rfc5321#page-20.

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#9.

[DerDakon]

Qsmtp has a per-user setting to reject those as they are often a sign of spam bots.