Even without reading your list config, I'm restraining myself from saying something about your PM. What is a MuA supposed to do? To tell you that it's refused to send an email? 😂
-- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254 7 3200 0004/+254 7 2274 3223 In an Internet failure case, the #1 suspect is a constant: DNS. "Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-) [How to ask smart questions: http://www.catb.org/~esr/faqs/smart-questions.html] On Fri, Jul 18, 2025, 21:08 Andy Matthews <[email protected]> wrote: > My project is doing testing of our mailing lists and came across what > appears to be a bug. I believe it's not but she insists that it is. So > before I do a bunch of research I wanted to post my steps to reproduce and > ask for input. I'm including the full (redacted) mailing list config at the > bottom of this post for reference. > > * I have a closed mailing list, [email protected] > * That mailing list has multiple subscribers, including user-1. I > confirmed this by shelling into our server and running `mailman members > [email protected] --role=any` on the OS command line. This showed all > of the subscribers, including user-1. > * I sent an mail FROM user-1 TO acme-closed, and it was received. And by > that I mean I received an email TO acme-closed, FROM user-1. I also > received the same email emails sent to the other subscribers since I use a > catch all address for local testing. > * In our system I closed user-1's account (which removes that user from > the mailing list). I confirmed this by running the `mailman members` > command and noting that user-1 was no longer a subscriber. > * I sent another mail FROM user-1 TO acme-closed, and received two emails. > One showed what appears to be a successful send to the mailing list. It > showed acme-closed as the TO address, and user-1 as the sender. But I also > received a second email TO user-1 FROM acme-closed whose body reads "Your > message to the Acme-closed mailing-list was rejected for the following > reasons: The message is not from a list member. The original message as > received by Mailman is attached." > > So my PM is insistent that the first email is proof that there's a bug. > "No e-mail sent from an e-mail address for a closed account should be sent > to the mailing list." > I on the other hand am arguing that the second email is proof that the > email _wasn't_ actually sent to the list, and was instead a sort of > bounceback to the user, However it's tough to argue with her logic because > I agree the first email seems to have been incorrectly sent. > > Can you help me understand why the first email was sent, and if there's a > way to prove with certainty that Mailman is behaving correctly? > > > ``` > accept_these_nonmembers: [] > acceptablealias: [] > admin_immed_notify: True > admin_notify_mchanges: True > administrators: [5 <Members>] > administrivia: True > advertised: False > allow_list_posts: True > anonymous_list: False > archive_policy: ArchivePolicy.private > archive_rendering_mode: ArchiveRenderingMode.text > autorespond_owner: ResponseAction.none > autorespond_postings: ResponseAction.none > autorespond_requests: ResponseAction.none > autoresponse_grace_period: 90 days, 0:00:00 > autoresponse_owner_text: > autoresponse_postings_text: > autoresponse_request_text: > bounce_info_stale_after: 7 days, 0:00:00 > bounce_matching_headers: > > bounce_notify_owner_on_bounce_increment: False > bounce_notify_owner_on_disable: True > bounce_notify_owner_on_removal: True > bounce_score_threshold: 5 > bounce_you_are_disabled_warnings: 3 > bounce_you_are_disabled_warnings_interval: 7 days, 0:00:00 > bounces_address: [email protected] > collapse_alternatives: True > convert_html_to_plaintext: False > created_at: 2025-07-18 17:22:54.921936 > data_path: /var/mailman/lists/[email protected] > default_member_action: Action.accept > default_nonmember_action: Action.reject > description: closed > digest_is_default: False > digest_last_sent_at: None > digest_members: [] > digest_send_periodic: True > digest_size_threshold: 30.0 > digest_volume_frequency: DigestFrequency.monthly > digests_enabled: True > discard_these_nonmembers: [] > display_name: Acme-closed > dmarc_addresses: [] > dmarc_mitigate_action: DMARCMitigateAction.munge_from > dmarc_mitigate_unconditionally: False > dmarc_moderation_notice: > dmarc_wrapped_message_text: > domain: <Domain @foo.com> > emergency: False > encode_ascii_prefixes: False > filter_action: FilterAction.discard > filter_content: False > filter_extensions: [] > filter_types: [] > first_strip_reply_to: None > forward_auto_discards: True > forward_unrecognized_bounces_to: UnrecognizedBounceDisposition.discard > fqdn_listname: [email protected] > gateway_to_mail: False > gateway_to_news: False > hold_these_nonmembers: [] > id: 2 > include_rfc2369_headers: True > info: > join_address: [email protected] > last_digest_recipients: [] > last_post_at: 2025-07-18 17:26:28.155475 > leave_address: [email protected] > linked_newsgroup: > list_id: [email protected] > list_name: acme-closed > mail_host: @foo.com > max_days_to_hold: 0 > max_message_size: 20000 > max_num_recipients: 0 > member_moderation_notice: > member_roster_visibility: RosterVisibility.moderators > members: [6 members] > metadata: MetaData() > moderator_password: None > moderators: [5 Members] > newsgroup_moderation: NewsgroupModeration.none > next_digest_number: 1 > next_request_id: 1 > nntp_prefix_subject_too: True > no_reply_address: [email protected] > nonmember_rejection_notice: > nonmembers: [2 Members] > obscure_addresses: True > owner_address: [email protected] > owner_chain: default-owner-chain > owner_pipeline: default-owner-pipeline > owners: [] > pass_extensions: [] > pass_types: [] > personalize: Personalization.none > post_id: 2 > posting_address: [email protected] > posting_chain: default-posting-chain > posting_pipeline: default-posting-pipeline > preferred_language: <Language [en] English (USA)> > process_bounces: False > regular_members: [6 Members] > reject_these_nonmembers: [] > reply_goes_to_list: ReplyToMunging.no_munging > reply_to_address: None > request_address: [email protected] > require_explicit_destination: True > respond_to_post_requests: False > scrub_nondigest: False > send_goodbye_message: False > send_welcome_message: False > subject_prefix: [Acme-closed] > subscribe_address: [email protected] > subscribers: 13 Members] > subscription_policy: SubscriptionPolicy.moderate > topics: [] > topics_bodylines_limit: 5 > topics_enabled: False > unsubscribe_address: [email protected] > unsubscription_policy: SubscriptionPolicy.confirm > usenet_watermark: None > volume: 1 > ``` > _______________________________________________ > Mailman-users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > https://lists.mailman3.org/mailman3/lists/mailman-users.mailman3.org/ > Archived at: > https://lists.mailman3.org/archives/list/[email protected]/message/XO4NFRKKUTH336SC5XO7ELCCFHHEEELX/ > > This message sent to [email protected] > _______________________________________________ Mailman-users mailing list -- [email protected] To unsubscribe send an email to [email protected] https://lists.mailman3.org/mailman3/lists/mailman-users.mailman3.org/ Archived at: https://lists.mailman3.org/archives/list/[email protected]/message/3WIJUHGAZJFQWEEQUMW6JJ6R2VNHFYVZ/ This message sent to [email protected]
