/dev/rob0: > The old default of most MUAs to use port 25 was wrong, and it is now > coming back to haunt you. That said, you have workarounds: > > - Use a different IP address for port 25 MX and submission mail
I've added this one to the documentation (a dedicated, non-MX, submission service on port 25). Wietse > - Communicate with users, the need to change to 587; postscreen > implementation can be a fiendishly effective way to do that. :) > > However you choose to do it, you must now separate your user > submission mailstream from your MX mailstream. > -- > Offlist mail to this address is discarded unless > "/dev/rob0" or "not-spam" is in Subject: header >