Thanks for the update, Bruce! Bruce Johnson writes:
> This was the actual bounce error from one of the offending messages: > > A message that you sent could not be delivered to one or more of its > recipients. This is a permanent error. The following address(es) failed: > > > [redacted]@alaskan.com > > host > inbound.gci.net > [69.168.106.130] > SMTP error from remote mail server after end of data: > 554 5.7.1 [P4] Message blocked due to spam content in the message. Note to OP: This is different from the message mentioned by you ("550 illegal Unicode BOM in header" or similar). I'd need to see that message's full header to debug that fully, but it sounds like GCI is generally not doing a great job here. > It’s being bounced by some spam rule on CGI.net; it’s a global one > so it’s something in their configuration, since none of the other > providers are bouncing it, it’s not really recognizable as spam. Bruce, Looking at your "from" address, I wonder did your message mention pharmaceuticals, conditions, or treatments by name? I know that for a long time my personal filter had an enormous variety of spellings of erectile dysfunction treatments. :-/ Nevertheless, I would say very probably GCI is responsible. Recipient ISPs are very hard problems, as such ISPs generally don't give anywhere near as many damns about lost mail (which they invariably blame on senders and/or mailing lists) as they do about any uptick in spam. The list should start by opening an issue with GCI, if necessary by mail to postmaster. If they give you "you're not a customer" BS, report that to their users, too (see below). At the same time, I would inform the sender of the mail that's systematically misclassified and ask *them* to open an issue with GCI, and to inform you of any response. Since they're a governmental body according to the OP, they may have more pull than a mailing list with a "mere" X,000 members. If they don't get a timely, responsive answer, or get "not a customer", send a post to the list saying "GCI-based subscribers *are provably* losing certain kinds of list mail on a regular basis, and since it's an automated filter, *may* be losing non-list mail as well. GCI is not cooperating in resolving the problem." Cc: the help desk, or if necessary, postmaster@gci. If that gets no action, the next step would be to suggest well-behaved competitors to GCI. }:^} (If postmaster@ bounces, this is the first step. ;-) I agree with Jayson Smith that it's quite possible that GCI is not running its own spam filters, but that's too bad for them. postmaster@GCI is responsible for the health of its mail system by definition, and that includes getting timely action from outsourced service vendors. I don't think there's much the list can do about this (short of unsubscribing GCI addresses, which is not recommended unless required by law or applicable regulation ;-), as both the sender and the recipients' providers are effectively sovereign in this area, and the message content is apparently innocuous. Steve ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org