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can receive mail, can send internal, can't send outside

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can receive mail, can send internal, can't send outside - 15.Feb.2007 9:03:41 AM

Will_G

Posts: 1
Joined: 15.Feb.2007
Status: offline

Hey all, I have a newly installed Exchange 2K7 installed on x64 Win 2003 Server. Receive connector is configure as is Send connector. The problem is that I can only send email internally. I can receive from anyone, but mail destined for outside my domain remains in queue. Here is a message that is returned to my inbox when trying to send outside domain:

Delivery is delayed to these recipients or distribution lists:

xyz@isp.com
Subject: last test of night
This message has not yet been delivered. Microsoft Exchange will continue to try delivering the message on your behalf.
Delivery of this message will be attempted until 2/16/2007 6:36:19 PM (GMT-06:00) Central Time (US & Canada). Microsoft Exchange will notify you if the message can't be delivered by that time.

I have a static IP, correctly configured DNS, an MX record, etc. Can anyone suggest something? Thanks so much.

Post #: 1

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RE: can receive mail, can send internal, can't send out... - 15.Feb.2007 2:30:05 PM

Henrik Walther

Posts: 6827
Joined: 21.Nov.2002
From: Copenhagen, Denmark
Status: offline

Can you telnet to port 25 on external SMTP servers from your E2K7 server?

_____________________________

HTH
Henrik Walther
Exchange MVP & MCM: Exchange 2007
MCITP: Exchange 2007, MCITP: Windows Server 2008, MCSE: M+S

Order my Exchange Server 2007 Book!

(in reply to Will_G)

Post #: 2

RE: can receive mail, can send internal, can't send out... - 15.Mar.2007 10:34:06 AM

Linke Loe

Posts: 17
Joined: 1.Oct.2003
From: Netherlands
Status: offline

I'm experiencing the same problem and I cannot do a telnet on port 25 to my exchange server from any computer that is member of the domain. I can do a telnet to port 26, after changing the portnumber in the hub transport configuration. Also, I can do a telnet to port 25, both to my exchange server and external mail servers, from a computer that is not member of the domain. Is there some kind of GPO blocking connections to port 25?

(in reply to Henrik Walther)

Post #: 3