[Mailman-Users] DMARC victim example?

Mark Sapiro mark at msapiro.net
Mon Apr 14 03:57:01 CEST 2014

On 04/13/2014 06:48 PM, Richard Damon wrote:
> When sending a large number of copies of identical emails to a single
> server, you want to batch it into one message with multiple recipients
> (this assumes you are not using VERP, which would cause the messages to
> not be identical).
> When the recipient server gets the message, it can reject the message as
> a whole (which is what seems to be happening here), or it can indicate
> that a particular recipient can not receive it (which would be more
> common for things like mail box full or no such address).
> My guess is that mailman has no code to specially handle the first case,
> and when it gets a single bounce notification, assigns that bounce to
> just one subscription, likely the first.

It depends on the exact format of the DSN, but as long as the DSN
contains all the rejected addresses, it is likely that if Mailman
recognizes it at all, it will recognize each bouncing address. If the
DSN is RFC 3464 compliant, this will be the case.

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

More information about the Mailman-Users mailing list