At 21.51 -0500 2000-02-02, Dennis Boone wrote: > > One of our Unix guys just came over to ask me about a problem he is > > seeing between the postfix mail server and Listserv. We are running > > Listserv 1.8d on AIX. He said that postfix is seeing mail from > > moderated lists as mail loops when it comes back from the moderator. > > He said he was looking at some things from the postfix side but wanted > > to know if I had any ideas. I was just wondering if anyone has seen > > anything like this or has any suggestions. > >We use qmail. Qmail inserts a "Delivered-to:" header during the local >delivery phase. LISTSERV doesn't strip this header when it forwards >the message to the editor. (This might depend on configuration.) >If the editor uses a mailer which doesn't strip this qmail header, >then qmail sees its own tracks in the message on the second pass, >and calls it a loop. > >I know nothing about postfix, but it's possible it might use a similar >mechanism. > >Dennis Boone >H-Net My guess also went towards the Delivered-To that Postfix uses. They can be turned off as per Postfix snapshot 19991122 announcement: - The ugly Delivered-To: header can now be turned off selectively. The default setting is: "prepend_delivered_header = command, file, forward". Turning off the Delivered-To: header when forwarding mail is not recommended. I don't have any moderated lists myself, so I haven't run into the problem. We are using nothing but Postfix on our central servers including the ones harbouring Listserv. /BoK -------------------------------------------------- Bo Kleve Mail: [log in to unmask] Linkoping University Phone: +46 13 281761 Sweden Fax: +46 13 284400