Bugs item #1256272, was opened at 2005-08-11 01:47 Message generated for change (Comment added) made by poelzi You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=100103&aid=1256272&group_id=103 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: nntp/news Group: 2.1 (stable) Status: Open Resolution: None Priority: 5 Private: No Submitted By: Kate Turner (kateturner) Assigned to: Nobody/Anonymous (nobody) Summary: NNTP gatewaying trashes Message-IDs Initial Comment: when a message is relayed to NNTP, the NewsRunner unconditionally replaces the existing Message-ID with its own. this breaking threading when reading a list via news, and when an NNTP user replies to a list message. a better solution would be either: 1) do not rewrite the message-id unless the NNTP server reports an error when posting it (duplicate ID); or 2) optionally, always rewrite posters' message-ids into a mailman-generated ID, and use this ID for both mail and news. i have implemented the former at our site and it appears to work, but it's so ugly i'd not feel comfortable submitting a patch for it. ---------------------------------------------------------------------- Comment By: Daniel Poelzleithner (poelzi) Date: 2006-12-12 21:12 Message: Logged In: YES user_id=70861 Originator: NO nobrowser: the problem is, that newsserver drop messages in crossposts when one is a mailinglist and the other is a newsgroup. i just had an idea. we you use a small sqlite table: | Original-ID | Translated-ID | Last-Used | When a message is pulled von news, we replace in the reference header alle ocurrences of translated-id's with their original id's. When a message is posted to news, we replace all original-id's with translated-id's. A new message still generates a new message id, the original is inserted into the table along with it's original id. On all actions, we update last-used. The daily cron job, deletes all last-used older than x days (60 for example) to keep the table small. This way, no thread trashing would occure on both sides, while keeping crossposting possible and overhead isn't too much i think. ---------------------------------------------------------------------- Comment By: Kate Turner (kateturner) Date: 2006-04-29 16:44 Message: Logged In: YES user_id=1116721 the conflicts occur when a user cross-posts a message to two lists. the newsrunner won't turn it into a cross-post, instead it tries to post it separately to both groups, and the news server rejects the second one for a duplicate message-id (tested with innd). of course, you could say this behaviour is a bug too :) i'm not sure what the best way to group cross-posted messages is, since they won't be received by the same mailman instance. (cancelling the first and re-posting to both groups might work, but i don't know if inn will still record the message-id and not allow it to be reused.) ---------------------------------------------------------------------- Comment By: Ian Z. (nobrowser) Date: 2006-04-20 07:13 Message: Logged In: YES user_id=1192798 Finally! I thought I was the only one who noticed this. See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=346413 Why would the mail message-id ever cause a conflict with the NNTP server? message-ids are supposed to be globally unique and there is a convention (in RFC 2822?) that ensures it (put in the FQDN and something unique to the generating software). So I think 1) is not ugly but correct :) 2) wouldn't completely solve the problem. I can post one copy of a message to a mailman list and another directly to another recipient, including myself. (I actually Cc myself on all mail I send). If mailman does 2), the extra recipient will still be confused. Ian ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=100103&aid=1256272&group_id=103