On Fri, November 14, 2008 10:05, [EMAIL PROTECTED] wrote:

> Is there some way to block this way, or to set some kind of
> authentication only if in MAIL FROM: field they use our domains?
>
> How can i solve this problem at all?

http://www.postfix.org/postconf.5.html#reject_unauthenticated_sender_login_mismatch

that will reject sender that are local without auth, then spammers need to
know the password to use a local domain

olso needs

smtpd_sender_login_maps to be defined

-- 
Benny Pedersen
Need more webspace ? http://www.servage.net/?coupon=cust37098

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