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- In reply to: Osmany Goderich: "RE: Please I need help on the restrictions"
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From: mouss (no email)
Date: Thu Nov 01 2007 - 10:55:40 EDT
Osmany Goderich wrote:
> Thanks. I think I finally got the right configuration. I just wanted to make the smtp authentication to be a must because before this the clients could send mails whether they authenticate or not, but now they have to otherwise the server returns and 'Relay access denied' error. Now if anybody has seen the configurations I have (I sent it in the last two messages), can anyone clarify the last two rules? The reject_unknow_sender_domain and reject_unauth_destination, what do they do? If those rules are not a match what do they return? Dunno or OK?
>
please do not top post. google if you don't know what this means. (in
short, put your replies after the text you reply to).
reject_unauth_destination prevents relay. if you remove it, you become
an open relay. More precisely, it will reject mail if the recipient
domain is not one of "yours" (mydestination, virtual_mailbox_domains,
virtual_alias_domains and relay_domains).
reject_unknown_sender_domain rejects mail if the sender address is
"unknown" in DNS (no MX nor A record).
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