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Exchange 2003 Server will not allow Internal Servers to Relay

Posted on 2010-09-16
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Last Modified: 2013-11-30
i am having issues with my exchange server allowing mail to relay through it. I have everything setup correctly and just noticed that i can't telnet to port 25 from any of the Allowed ip addresses i have in the print screen. This was working at one point and looks to me like it just stopped in the past week or two. I am still able to send regular exchange emails internal/external any ideas.

So if you look at the image i am on the server 172.31.9.5 and i try telnet 172.31.1.202 25 it doesn't work

172.31.1.202 = Exchange 2003 Server???

relay.jpg
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Question by:adamshields
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by:Akhater
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new firewall ? antivirus ? can you telnet to it port 25 from any OTHER ip than the one listed?
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by:endital1097
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check the connections button on the same tab as relay
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by:adamshields
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no new firewall or AV

this is very odd

from 172.31.1.224 and 172.31.1.40 I can telnet

but from 172.31.1.200 I can't telnet

what could this be????


relay2.jpg
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by:adamshields
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none of them are in the relay list some work and some don't
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by:Akhater
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when you CAN telnet can you please copy past the SMTP banner you get ?
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by:adamshields
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220 MYDOMAIN.net Microsoft ESMTP MAIL Service, Version: 6.0.3790.3959 ready at  Thu, 16 Sep 2010 15:28:35 -0400
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Akhater earned 500 total points
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could it be an antivirus on the client side ?
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by:adamshields
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wow your right i disabled Mcafee on the client and it worked!!!! Thanks now i just have to figure out what setting is different from my other servers
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by:Akhater
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you mean even when you can telnet you still can't relay ?
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by:adamshields
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no i CAN sorry i was talking about settings in mcafee
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by:Akhater
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great then !
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by:adamshields
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thanks for your help
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