On Jul 1, 2014, at 11:42 AM, Barry S. Finkel <bsfin...@att.net> wrote:
> On 7/1/2014 6:50 AM, Robert Heller wrote: >> I am the site admin of a server that hosts a bunch of Mailman lists and on >> the >> 1st of the month Mailman sends out its monthly reminder messages. Some of >> these messages are bouncing. Some are *obviously* for people who have >> changed >> E-Mail providers (the bunces say 'User Unknown' or 'Mailbox full'). But some >> have 'odd' rejection reasons and I wonder what it really going on. >> >> Comcast is bouncing with the message: >> reason: 554 Transaction Failed Spam Message not queued. >> >> Is this Comcast's way of 'hiding' the fact that the E-Mail address is no >> longer valid? That is, does Comcast consider E-Mail to unknown users spam? >> >> > Comcast* will reject all list mail from a Yahoo or AOL member post based on those ISP’s DMARC p=reject policy. In other words, they honor the p=reject. Could this be your issue? best regards, Larry *So will many other ISPs: SBC Global, AT&T, Rogers, Earthlink, etc. -- Larry Finch finc...@portadmiral.org ------------------------------------------------------ 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
