Zitat von Matteo Cazzador <mat...@netlite.it>:
Hi, i've a problem causing by blacklist.I 've a virtual postfix mail server (with smtp server sasl auth), when a user send a mailusing my smtp server to a specific domain i obtain: " hostname ... server refused to talk to me: 550 Denied by policy" My problem is that the sender isn't warned of mail server error. The sender don't receive immediatly any error message, why? Is it possible to have immediatly error on client sender side on error 550? Can someone help me please? Thank's a lot.
Mail is store and forward, so your server doesn't know at time of submitting the mail if it can be delievered. But you client will get a bounce and therefore see that the delievery failed. Unfortunately nearly no mailclient is able to notify the user in a understandable way, but that a UI problem at the client side.
Regards Andreas
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