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North American Network Operators Group

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Re: Why do so few mail providers support Port 587?

  • From: David Lesher
  • Date: Tue Mar 01 15:55:00 2005

Speaking on Deep Background, the Press Secretary whispered:
> 
> 
> 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.
> 
> Chris


Well, I'm no player in this league and ask...

	Why will ISP's ""wise up"" and block 587?

If 587 is always auth'ed; then there will be no spam splashback
provoking calls to block it. (Individual customers may get
zombied; but that's easy to track and treat...)

If a provider runs an open 587 port, and thus gets used as spam
source; they will soon meet Mr. Linford and/or Mr. SPEWS.

In either case, why will the clued ISP's want to block 587?




-- 
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433






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