Try to put the FQDN of the relay server in your local /etc/hosts file.
Example :
10.11.12.13 mailserver.domain.com
And then in your sendmail.cf file :
mailserver.domain.com
Restart the sendmail daemon and try again.
Is relaying enabled on your e-mail server ?
HTH
Matthias
Message
From: mailnickykav via ibm-aix-l [mailto:ibm-aix-l (AT) Groups (DOT) ITtoolbox.com]
Sent: 27 May 2005 16:36
To: Hoys (AT) mailrelaypi (DOT) smals-mvm.be; Hoys, Matthias (INF)
Subject: [ibm-aix-l] RE: Urgent: Sendmail not working
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Hi,
All the local mails are going through fine. Its only when i am sending
external email i get this problem. I changed the smart relay in the
sendmail.cf file to new.com, but for some reason it is still trying to
send to old.com. I can't understand why. In my sendmail.cf file there is
no mention what so ever of "old.com" not even in the comments, but still
it is trying to send to old.comand since old.com does not exist any
more, the mail is failing.
Any suggestions as to what i am missing out here
Message
>
>Try an ping polar.com from the sending server.
>
>Are you attempting to send mail to a central MTA prior to heading to
>the internet, or is this just a local send.
>
>What wsa the line you removed the old.com from. Can you ping old.com?

>old.com or what ever your email server is need to be accessible.
>
>The good thing is you are heading in the right direction with doing
>verbatim test.
>
>
>Walter
>
>
>
>
>
>
>
>
>
>
>
Message
>>Hi,
>>
>>I have an old machine which send out mail if a filesystem gets full or

>>other such events. It suddenly stopped sending mails.
>>on checking the sendmail.cf file i saw that it was using an old mail
server which was no longer in use (say old.com). i changed it to the
current mail sever (say new.com). But i am still not able to get the
mail to work.
>>
>>after the above changes i did 'newaliases' and i stopped and restarted

>>the sendmail process.
>>
>>here is the output of:
>>
>>root@support>
>>sendmail -v testuser (AT) polar (DOT) com < /etc/motd
>>root setsender: uid/gid = 0/0
>>testuser (AT) polar (DOT) com Connecting to old.com.tcp
>>testuser (AT) polar (DOT) com Connecting to old.com (tcp)
>>testuser (AT) polar (DOT) com Host unknown
>>Saving message in //dead.letter
>>//dead.letter Can't create output
>>root@support>
>>
>>I see that it is still trying to connect to old.com, why is this
>>happening? i have removed all entries of old.com form the sendmail.cf
>>file. Please advice why this is happening.
>>
>>
>
>
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