Hi Viktor, > By all means deploy an LMTP content_filter, but use SMTP to re-inject > the filtered messages. If a group of recipients temp-fails the > re-injection, send a failure code for that group to the front-end > LMTP client.
Yes, that should also work, thanks. I was focussing on passing feedback for individual recipients in a one-by-one fashion from lmtpd back to lmtp, but it is actually even nicer to do it per group -- so that a resend can be tried for the group and they get to see each other's addresses to share. Thanks! -Rick
