North American Network Operators Group
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Re: Why do so few mail providers support Port 587?

  • From: Stephen Fulton
  • Date: Tue Mar 01 15:41:15 2005 
Chris Horry wrote:


Yes, right up until a) ISPs wise up and start blocking port 587, and
then 465 for good measure.  or b) malware authors wise up.  B will
happen sooner.
I completely agree, which is why if alternative SMTP injection ports are being used, some measure of authentication be used to authorize (or, in case of abuse, block) access. It isn't the magic bullet, and won't work forever, but in regards to the mail systems I maintain, it will do for now.


-- Stephen Fulton.