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Can't telnet port 25 exchange internally

Posted on 2009-04-02
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Last Modified: 2012-05-06
Hello everyone,

i'm having a strange problem we have a sbs 2003 r2 server. Which since yesterday can't send e-mail but can not receive e-mail. First I tried to telnet externally which didn't really respond i only get a blank prompt and not usually mail service tekst.

Also I can't ping internally from a computer. But then i thought what if I do it on the server 127.0.0.1 at port 25 but also no response.

Then i thought it was the virus / spam filter. Deleted those ones. But still no telnet connection. Now I'm beginning to get out of options.
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Question by:Theun111
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Expert Comment

by:bmatumbura
ID: 24047541
It seems your SMTP service is down. Please verify that the SMTP service is up in the Services applet
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Author Comment

by:Theun111
ID: 24047659
smtp service is up and running
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Author Comment

by:Theun111
ID: 24047682
Was already running, but stil won't work, thanks for the answer.
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LVL 11

Expert Comment

by:bmatumbura
ID: 24047837
I have seen this behavior if you are using some end-point anti-virus solution like AVG Enterprise. If it's not configured correctly, the SMT server may become in-accessible.

Did you recently install or update your antivurs/anti-spyware/local firewall?
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LVL 11

Expert Comment

by:bmatumbura
ID: 24047851
Also check to see what TCP port is actually configured under the Advanced dialog box of your "Default SMTP Virtual Server" properties
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Accepted Solution

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Theun111 earned 0 total points
ID: 24047908
ok found the solution !

Added by the smtp connectors the ips of the router / server / 127.0.0.1
Thanks for the fast response bmatumbura

Everything is working fine now !
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LVL 15

Expert Comment

by:Dave_AND
ID: 24047960
Did you check the SMTP Default server is running? mine died yesterday too, (under server>protocles>smtp>detault smtp)
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Expert Comment

by:Dave_AND
ID: 24047966
meh... sorry about that, I got stuck on the phone while i was typing that..
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Author Comment

by:Theun111
ID: 24049344
Hello Dave,

i've checked is but is was running, only now I understand that i have a open relay server which isn't  my intention. hmm let go search to the next questioin how i can solve this problem.
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