On Thu, 2009-06-18 at 16:14 -0400, Joe Provo wrote: > then you should be shifting your userbase to authenticated on the > SUBMIT > port [587] anyway...
Except for those ISPs who choose to intercept port 587 as well. This is a big problem with Rogers in Vancouver. They hijack port 587 connections through some sort of lame proxy that connects you to your intended host, but strips the AUTH field out of the EHLO response from the remote submission server ...
