Hi, we are running a mailman service along with our mail server and recently we have noticed one institution gets lots of bounce messages like below and unable to find the route cause. if any inputs really appreciated. some cases mails are partially delivered but not to all members.
Error List: Comphealth_all Member: [email protected] Action: Subscription deaktiviert. Reason: Excessive or fatal bounces. <[email protected]>: service unavailable. Command output: SMTPclient: unexpected reply: 571 571 Sender is not allowed to email this distribution list: [email protected]_ <[email protected]>: service unavailable. Command output: SMTPclient: unexpected reply: 571 571 Sender is not allowed to email this distribution list: [email protected]_ Reporting-MTA: dns; mta01.domain.com X-Postfix-Queue-ID: 50A0C318A89 X-Postfix-Sender: rfc822; [email protected] Arrival-Date: Tue, 27 Apr 2021 15:02:32 +0200 (CEST) Final-Recipient: rfc822; [email protected] Original-Recipient: rfc822;[email protected] Action: failed Status: 5.3.0 Diagnostic-Code: x-unix; SMTPclient: unexpected reply: 571 571 Sender is not allowed to email this distribution list: [email protected]_ Final-Recipient: rfc822; [email protected] Original-Recipient: rfc822;[email protected] Action: failed Status: 5.3.0 Diagnostic-Code: x-unix; SMTPclient: unexpected reply: 571 571 Sender is not allowed to email this distribution list: [email protected]_ Von: Mara Lena Kieke <[email protected]> Betreff: Aw: [Comphealth_all] MUDS seminar Wed April 28, 3pm: Razieh Nabi Datum: 27. April 2021 um 15:02:31 MESZ An: [email protected] ------------------------------------------------------ Mailman-Users mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/mailman-users.python.org/ Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: https://www.mail-archive.com/[email protected]/ https://mail.python.org/archives/list/[email protected]/
