Hi Jim, On 1/4/19 3:40 AM, Jim Ziobro wrote:
Setting up mailing lists in a separate domain has a nice administrative appeal.
Agreed. That's how I've always done it.If I ever cared enough, I could set up a forward (et al) from l...@example.net to l...@lists.example.net. Maybe not automatic. But it does function. (Or it did the last time I tried.) - I think it did require adding an alternate address for the list to recognize itself as.
I did a little more research to see how popular that method might be. I got a list of 1922 US universities and 457 have a host "lists...." and 191 have a host "list..." in their DNS. I surveyed a few and ran across: Mailman, Lyris, Sympa, Listserv, Majordomo, and Google groups. Many universities outsource their Email to Outlook which has it own Group capability.
Interesting.
I can hook up any mail system. Just give me the list of mail-lists and tell me how to inject messages. Glue will be more specific to a Mailer and OS than either Mailman or Sympa. I think we get a benefit if we make a clean interface between Mailman and its feeding MTA.
Agreed.
We can then eliminate some of the hacks like mm-handler.
Maybe. But I think the hacks just move elsewhere, especially if you want other features.
I have some ideas for Mailman2. I'll follow up.
I'd like to see some sort of integration into the Mailer (MTA) such that it can do some simple filtering and reject the message at SMTP time instead of needing to bounce it after the fact.
I think it should be somewhat easy to test the SMTP envelope sender to see if it's subscribed to a list that is the SMTP envelope recipient. If the sender is not a subscriber the MTA can reject the message.
It wouldn't be as simple, but I think similar could be done with the DATA phase of the SMTP transaction to filter body contents. Though I'm not sure how to parse a message to see if it should be rejected without actually having the message pass through part of Mailman.
I also think that an LMTP and / or SMTP interface to Mailman would be nice. I think that provides more features at the SMTP / DSN (maybe MDN) level than STDIN into Mailman can provide.
Nice work Jim. -- Grant. . . . unix || die
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