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Alt-N Discussion Groups > MDaemon Discussion Groups > MDaemon Issues > Archive > Message not RFC compliant

Francis BIELSA

Which Alt-N products do you use?

Most recent posts: Francis BIELSA

Error 550 5.6.0 Message is not RFC compliant; more than one From header - 03:32am Jun 23, 2020 CDT - Hello,

I think my problem comes from the AS400 side, I'm waiting for answers from them.
Uncheck "Refuse messages which violate RFC Standards" doesn't change anything.

A question unrelated to the previous one:
Is there a setting to send mails to some domains slower than others (like the slow command of Postfix)?..

Error 550 5.6.0 Message is not RFC compliant; more than one From header - 12:55pm Jun 15, 2020 CDT - No, no change. Moreover the AS400 SMTP server is in the same local network and its IP address is in the white list.

I don't understand why the error is systematically from the 200th mail since the 199 previous ones are well passed (For test purposes, it's the same mail sent 300 times and blocks at 200)...

Message not RFC compliant - 12:35pm Jun 15, 2020 CDT - Hello,
We encounter this error when a series of more than 200 emails is sent from an AS400 I5/OS SMTP server to Mdaemon's SMTP Relay version 19.5.5 64bit routinely at the 200th email.
This test was made with the same message and the same PDF attached.
- Sending mail 199 :
Thu 2020-06-11 13:55:21.383: Session 589855; child 0001
Thu 2020-06-11 13:55:21.383: Accepting SMTP connection from 192.168.100.1:50151 to 192.168.100.3:25
Thu 2020-06-11 13:55:21.387: --> 220 md.domain.com ESMTP Thu, 11 Jun 2020 13:55:21 +0200
Thu 2020-06-11 13:55:21.389: <-- HELO '192.168.100.3' Thu 2020-06-11 13:55:21.389: --> 250 domain.com Hello '192.168.100.3' [192.168.100.1], pleased to meet you
Thu 2020-06-11 13:55:21.389: <-- MAIL FROM:<APPRO@domain.COM>
Thu 2020-06-11 13:55:21.389: APPRO@domain.COM is an alias for xxxx@domain.com
Thu 2020-06-11 13:55:21.452: --> 250 2.1.0 Sender OK
Thu 2020-06-11 13:55:21.452: <-- RCPT TO:<salaux@xxxx.com>
Thu 2020-06-11 13:55:21.454: --> 250 2.1.5 Recipient OK
Thu 2020-06-11 13:55:21.454: <-- DATA Thu 2020-06-11 13:55:21.459: Creating temp file (SMTP): e:\mdaemon\queues\temp\md50000021502.tmp Thu 2020-06-11 13:55:21.459: --> 354 Enter mail, end with <CRLF>.<CRLF>
Thu 2020-06-11 13:55:21.460: Message size: 32215 bytes
Thu 2020-06-11 13:55:21.462: Passing message through AntiVirus (Size: 32215)...

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