Re: [SLE] postfix open relay

Ken Schneider wrote:

On Sat, 2006-01-28 at 02:55 +0200, it clown wrote:

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On Sat, 28 Jan 2006 00:46:36 +0100 (CET) "Carlos E. R." wrote:

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The Saturday 2006-01-28 at 00:59 +0200, it clown wrote:

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How can i secure my postfix mail server not to act as

open

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relay.

It is to vague a question. You'd better read the docs, then ask precise questions, if you don't understand something.

- -- Cheers, Carlos Robinson

i can telnet into smtp and relay mail asif it comes from any domain for example:

mail from: user@anydomain.com

I would like to stop this from happening.

How would i secure it.

Im not comming right with the docs.

Look through the docs for a parameter called $mydomains. I think that determines which domains are allowed to send email through your server. There is also a parameter called $mynetwork, I think.

Ummm... Postfix will not relay by default. If it is currently functioning as an open relay (which you can verify by going to www.abuse.net/relay.html) then you have a problem with your configuration. I would start with that. - herman