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sendmail

I have set up a server and am trying to use sendmail to send emails.

Every time I try to send an email it gets bounced back telling me that there is a fatal permanent error when trying to resolve the address, even though I know the addresses exist.
Any help would be appreciated.

Richard.h

Is that from the machine running sendmail or a client machine?

Can you send from the sendmail machine directly?

Can you access websites from the sendmail machine (possible DNS problem)?

Is that from the machine running sendmail or a client machine?

Can you send from the sendmail machine directly?

Can you access websites from the sendmail machine (possible DNS problem)?

ASKER

In answer to your questions...

Yes I am trying to send mail directly from the server.

Yes I can get websites on that machine with no problem

Thank you for helping.

Do you have a valid domain setup? As far as I know, the machine running sendmail must be a machine that is part of a valid internet domain and should have the proper reverse resolutions and name server entries made before you can use it to send or receive mail on the internet. For that you will either need your own primary and 2ndary name servers with the correct entries or, have your ISP set those up for you... Even if you have all those things, you also need to configure sendmail via it's cfg files.

ASKER

Thanks for the comment.

I am quite new to this and am not sure I know what you mean about a valid domain setup.

Do you mean that I need a domain name such as test.co.uk before I can use sendmail to send emails.

Thanks for taking the time to help.
Richard.H

yes, as far as I know, that's exactly what is needed. Your own valid internet domain.

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Try a manual connect like this

telnet <mailserver> 25

RICHARDH:

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1/27

ASKER

Clearing up some questions.

Thanks for the help.

RICHARDH:
When giving a grade less than A, it is a courtesy to explain WHY.

thanks!
amp
community support moderator