2024-07-30 14:07:55 1sYg1a-00000006UBE-1Zcn H=mail-qv1-f52.google.com [209.85.219.52]:43452 Warning: "SpamAssassin as akasotech detected message as NOT spam (1.3)"
2024-07-30 14:07:55 1sYg1a-00000006UBE-1Zcn <= simonk@??? H=mail-qv1-f52.google.com [209.85.219.52]:43452 P=esmtps X=TLS1.3:TLS_AES_128_GCM_SHA256:128 CV=no S=17527 id=2c7b7f4d-42a7-441c-b5f9-cfd6f81bcdb8@??? T="Re: Elevate Your Marketing and Boost Revenue with Growth Mate" for cs@???
2024-07-30 14:07:55 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1sYg1a-00000006UBE-1Zcn
2024-07-30 14:07:55 SMTP connection from mail-qv1-f52.google.com [209.85.219.52]:43452 D=41s closed by QUIT
2024-07-30 14:07:55 1sYg1a-00000006UBE-1Zcn => cs <cs@???> R=virtual_user T=dovecot_virtual_delivery C="250 2.0.0 <cs@???> uDe1LTuDqGYKlxcAOtl5Ug Saved"
2024-07-30 14:07:56 1sYg1a-00000006UBE-1Zcn [54.157.237.25] SSL verify error: certificate name mismatch: DN="/C=US/ST=California/O=Proofpoint, Inc./CN=*.smtp.a.cloudfilter.net" H="email-smtp.us-east-1.amazonaws.com"
2024-07-30 14:08:00 1sYg1a-00000006UBE-1Zcn ** support@??? (cs@???) <cs@???> R=send_via_ses T=ses_forwarded_smtp H=email-smtp.us-east-1.amazonaws.com [54.157.237.25] X=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256 CV=no: SMTP error from remote mail server after end of data: 550 Yg1csiqBIcYJ2Yg1cshbVu - <srs0=6b8c=o6=growthmatessagency.com=simonk@???> message rejected AUP#SNDR
2024-07-30 14:08:00 cwd=/var/spool/exim 7 args: /usr/sbin/exim -t -oem -oi -f <> -E1sYg1a-00000006UBE-1Zcn
2024-07-30 14:08:00 1sYg1g-00000006UBm-0tRI <= <> R=1sYg1a-00000006UBE-1Zcn U=mailnull P=local S=18990 T="Mail delivery failed: returning message to sender" for simonk@???
2024-07-30 14:08:00 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1sYg1g-00000006UBm-0tRI
2024-07-30 14:08:00 1sYg1a-00000006UBE-1Zcn Completed
2024-07-30 14:08:01 1sYg1g-00000006UBm-0tRI ** simonk@??? R=send_via_ses T=ses_smtp H=email-smtp.us-east-1.amazonaws.com [3.224.1.122] X=TLS1.3:TLS_AES_256_GCM_SHA384:256 CV=yes: SMTP error from remote mail server after MAIL FROM:<>: 501 Invalid MAIL FROM address provided
Original sender:simonk@???
Recipient's email address:cs@???
Forwarded address:support@???
SRS rewrite address:simonk@???
In the above log, if the forwarding fails, the return failure report needs to be sent to the original sender simonk@???, which prompts SMTP error from remote mail server after MAIL FROM:<>: 501 Invalid MAIL FROM address provided
xqm2018@???
From: Jeremy Harris via Exim-users
Date: 2024-07-30 17:07
To: exim-users
Subject: [exim] Re: error 501 Invalid MAIL FROM address provided is reported
On 30/07/2024 07:40, xqm2018--- via Exim-users wrote:
> In the exim advanced configuration manager
I've no idea what that is...
> SRS rewriting the sender has been enabled, but when the automatic forwarding of emails fails> and needs to be returned to the original sender,
Do you mean "a bounce mail is generated and needs to be sent to the original sender"?
> an error 501 Invalid MAIL FROM address provided is reported.
I infer that such a bounce is being rejected by the destination for the bounce,
which should be an MX for the original sender domain. Bounces have a null envelope
sender (required by standards, and needed to prevent loops). The envelope sender
is notified as part of the SMTP transaction using the MAIL verb.
> LOG: MAIN
> ** marc.wressig@??? R=send_via_ses T=ses_smtp H=email-smtp.us-east-1.amazonaws.com [52.206.145.59] X=TLS1.3:TLS_AES_256_GCM_SHA384:256 CV=yes: SMTP error from remote mail server after MAIL FROM:<>: 501 Invalid MAIL FROM address provided
The recipient of a message with a null envelope sender (presumably, this bounce)
has rejected it because (it claims) it does not like the envelope sender.
That is its problem, not yours. It will ignore, presumably, all such automatic
notifications of message-handling issues ("MDN" is the general term, "bounce"
the most common type and colloquial term) - and its overall message reliability
and ease of maintenance will be impacted as a result.
SRS is not involved in it's rejection of this message.
--
Cheers,
Jeremy
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