Re: Does anyone know how Verizon's outbound, external mail (port 587) is going to work?

["Doty, Timothy T." <tdoty () MST EDU>]

Actually, if you read what Verizon says they've been doing this since
FQ2009, which means it has been the case for six months now. Sure, that may
be late to the game, but it isn't a plan, it is already fait accompli.

-----Original Message-----

-----Original Message-----
From: The EDUCAUSE Security Constituent Group Listserv
[mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf Of Peter Charbonneau
Sent: Thursday, September 24, 2009 8:17 AM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: [SECURITY] Does anyone know how Verizon's outbound, external mail
(port 587) is going to work?

Good morning,

   I just read Verizon's "letter to the community" about blocking
outbound port 25 in order to decrease SPAM egressing their network.

hxxp colon slash slash www dot verizon dot net slash port25


   I am wondering exactly how this is going to work.  Do we punch
holes in our firewalls to allow tcp port 587 inbound to our mail
networks, or is Verizon going to port translate destination port 587
IN their network to port 25 as it leaves?  I have tried to talk to
Verizon tech support, but I either get "What?!?" or "It's all
explained in the document".  When I ask to talk to a supervisor, they
are unavailable.

   Does anyone here know?

PeteC


Peter Charbonneau
Sr. Network and Systems Administrator
Williams College
(413) 597-3408 (office)
(413) 822-2922 (cell)
OIT will NEVER ask for your password!

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