North American Network Operators Group

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Re: SMTP authentication for broadband providers

  • From: Alex Bligh
  • Date: Wed Feb 11 14:24:10 2004

what about port 25 blocking that is now done by many access providers?
this makes it impossible for mobile users, coming from those providers,
to access your server and do the auth.
[email protected]:~$ fgrep submission /etc/services
submission      587/tcp                         # submission
[email protected]:~$ fgrep ssmtp /etc/services
ssmtp           465/tcp         smtps           # SMTP over SSL