Qmail & Open Relay on local domains

Posted by Jonathan on Server Fault See other posts from Server Fault or by Jonathan
Published on 2010-05-14T15:00:51Z Indexed on 2010/05/14 15:04 UTC
Read the original article Hit count: 296

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qmail

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mail

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spam

Hello.

I have a dedicated server on 1&1 and I manage it with Plesk. The problem is that if I try to send a mail outside the server, I must to authenticate with the email and the password, but if I send an email to a address inside of my server I don't need neither email or password. This is a problem because the spammers are sending mails without any problem to the server accounts. We are receiving about 900 - 1200 emails everyday! What can I do?

I use qmail on CentOS

Thanks

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