Re: SMTP Outbound

["Di Fabio, Andrea" <adifabio () NSU EDU>]

We only allow 25 in/out to/from our email servers but we do allow 587 out as
we found that many email clients, especially on mobile devices, will use
this port. So the new question is, are you allowing TCP 587 out of your
network without restriction and have you seen any issue with doing that? We
have not seen any issues thus far.

 

Andrea Di Fabio, CISO

Director, IT Security and Network

Norfolk State University

Office of Information Technology

Marie V. McDemmond Center for Applied Research, Rm 401M

555 Park Avenue, Suite 401

Norfolk, Virginia 23504

757-823-2896 Office

757-823-2128 Fax

 

NSU email communication is subject to permanent archival, it is covered
under the Freedom of Information Act (FOIA), and may be partially or fully
disclosed.

 

From: The EDUCAUSE Security Constituent Group Listserv
[mailto:SECURITY () LISTSERV EDUCAUSE EDU] On Behalf Of Robert Henry
Sent: Wednesday, February 12, 2014 5:35 PM
To: SECURITY () LISTSERV EDUCAUSE EDU
Subject: [SECURITY] SMTP Outbound

 

This is a simple, non-scientific poll, please respond off-list and I will
share the results with the list.

 

Do you block SMTP traffic, port 25, outbound at your border firewall?

 

Thanks!

--Bob




--
Robert Henry, CISSP
Chief Information Security Officer
Santa Clara University
rhenry () scu edu <mailto:rhenry () scu edu> 
408-554-5554
http://www.scu.edu/is/secure

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