We just open port 2525 for customers from ISP's blocking official SMTP
ports so they can use their dedicated servers/domain mailservers.
Lyndon Nerenberg wrote:
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 ...
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