Jeremy Harris via Exim-users writes > You mailed person A. A has their mails configured, at the MX for A, > to be forwarded to B. You don't have control over that configuration; > it is entirely A's choice. He wanted it to be done. > > But you have configured your system, probably in "SPF" terms, you > say "any messages claiming to be from me *must* be be sent by *my* system. > Any messages being sent by any other system are invalid, and should be > rejected." > > The message is being sent onwards by A's MX to B's MX. it is being sent by > A's MX, as far as B's MX is concerned. > > B's MX implements SPF, and does what you claim you wanted. It rejects the > message, since the message did not arrive at that host directly from your MX. > > > > And thus, a traditional and useful feature of email handling has been broken.
You are touching on something I always wanted to know about but was to shy to ask. I run the mailbox re...@repec.org on my server. This is an email address that has been around for donkey's years and thus gets a lot of spam. I don't have an imap server for the readers of this email so I forward it to their external addresses. I understand that this breaks the SPF from the sending domain, and puts my server at the risk of being noted as an SPF breaker. I have been wondering if there an exim filter or configuration snippet that could, say for a set email-to address re...@repec.org, first spam filter, if not spam, take the from: field, make this the reply-to, replace the original from field with say forw...@repec.org and then remail to a couple of addresses. -- Written by Thomas Krichel http://openlib.org/home/krichel on his 21516th day. -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## exim-users-unsubscr...@lists.exim.org ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
