Chris St Denis wrote:
Looking through the docs it looks like I can use smtpd_sender_login_maps
and smtpd_sender_restrictions with reject_sender_login_mismatch
However I want to apply this only to selected destination addresses and
I'm not sure how to go about this.
Can I use reject_sender_login_mismatch (or something similar) in a
recipient map?
yes. same as all postfix actions.
Does smtpd_sender_login_maps have to contain all addresses on the
server, or just the ones I care about?
just the ones you need to check.
Optmally, I want to apply reject_sender_login_mismatch only to users
when sending to specific addresses. Reject if the check fails, but not
check for sending to anywhere else.
Dealing with forgeries from the internet isn't a big concern because
incoming mail comes in on a different ip, I can just block all incoming
mail with from: locally hosted domain. It is preventing senders from one
local domain from spoofing another for these restricted aliases that
needs protection.
