On Mon, 24 Aug 2009, Oscar m Cruz wrote:

> as soon as possible i need to block all kind of messages coming from an
> unkown account inside my server, its mean something as taking some unknown
> identities from my domain
> 
> for instance: unknownacco...@mydomain.com -> to m...@mydomain.com    happing
> with most of the mail account

See http://www.postfix.org/postconf.5.html#smtpd_reject_unlisted_sender

-- 
Sahil Tandon <sa...@tandon.net>

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