Yes I see that now ☺

From: Michael B. Smith [mailto:[email protected]]
Sent: Friday, May 3, 2013 1:38 PM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2013 Port Reference?

I answered that in another post.

From: Ryan Finnesey [mailto:[email protected]]
Sent: Friday, May 3, 2013 1:31 PM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2013 Port Reference?

Has Microsoft said why they will not make one available?

From: Richard Stovall [mailto:[email protected]]
Sent: Thursday, May 2, 2013 9:13 PM
To: MS-Exchange Admin Issues
Subject: Re: Exchange 2013 Port Reference?

You know, shoot me if I'm out of line here, but I couldn't help but read this 
thread and think:

netstat -abon

Wouldn't that at least help you discern from the ground what is going on?

(That said, the original request for a port reference document seems extremely 
reasonable.  The fact that one will not be made available is, well, bizarre.)

On Thu, May 2, 2013 at 2:15 PM, Frank R Wayne 
<[email protected]<mailto:[email protected]>> wrote:
Wikipedia updated!

Frank Wayne
Senior Systems Analyst, Collaboration Services

From: Rick Berry 
[mailto:[email protected]<mailto:[email protected]>]
Sent: Wednesday, 01 May, 2013 15:10
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2013 Port Reference?

You spotted it, makes you responsible for the Wikipedia edit.  Get crackin’.  
8^)

From: Frank R Wayne [mailto:[email protected]]
Sent: Wednesday, May 01, 2013 4:02 PM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2013 Port Reference?

I saw that, too. It was kind of helpful, but the terminological errors make me 
leery. E.g.: “Port 475 is the Mail Delivery service and this is an SMTP server 
that takes email from the Hub Transport service and places in the mailbox 
databases on the local server where it is running.” There is no hub transport 
service in Exchange 2013.

But thank you for the link! ☺

Frank Wayne
Senior Systems Analyst, Collaboration Services

From: Rick Berry [mailto:[email protected]]
Sent: Wednesday, 01 May, 2013 14:31
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2013 Port Reference?

The ports are explained in a paragraph on Wikipedia … I found this useful 
myself.

http://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol

Microsoft Exchange Server<http://en.wikipedia.org/wiki/Exchange_Server> 2013 
has an SMTP service listening on ports 25, 587, 2525, 465 and 475 depending 
upon server role and function. Port 25 and 587 for server and client 
connectivity, and 25 or 2525 and 465 on the Mailbox role for accepting internal 
SMTP connections (from other Exchange Servers in the organization), where 25 is 
the Hub Transport service for receiving SMTP from other SMTP servers and 465 is 
the Hub Transport service for receiving proxied connections from clients 
connected to the CAS Frontend Transport service. On servers that have the 
Client Access role (CAS) and the Mailbox role installed on the same machine 25 
and 2525 are in use - 25 for the Frontend Transport role (a CAS feature) and 
2525 for the Hub Transport service rather than port 25 running for both 
Frontend Transport and Hub Transport services. Port 475 is the Mail Delivery 
service and this is an SMTP server that takes email from the Hub Transport 
service and places in the mailbox databases on the local server where it is 
running.



From: Michael B. Smith [mailto:[email protected]]
Sent: Wednesday, May 01, 2013 3:17 PM
To: MS-Exchange Admin Issues
Subject: RE: Exchange 2013 Port Reference?

There is not one and Microsoft has said that there will not be one.

And the answer to your question is “yes”.

From: Frank R Wayne [mailto:[email protected]]
Sent: Wednesday, May 1, 2013 3:12 PM
To: MS-Exchange Admin Issues
Subject: Exchange 2013 Port Reference?

I’ve looked for one of these but found only posts asking for it.

I wonder whether ports 465 and 475 have to be open across sites.

Frank Wayne
Senior Systems Analyst, Collaboration Services
Information Technology Management Systems

NORTHWESTERN UNIVERSITY
1800 Sherman Avenue, Suite 600
Evanston IL 60201
+1 847 467 1767<tel:%2B1%20847%20467%201767> (telephone)
+1 847 491 3887<tel:%2B1%20847%20491%203887> (fax)
http://www.it.northwestern.edu<http://www.it.northwestern.edu/>


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