I've got a bit unusual situation. I need to prevent e-mails to certain domain. What I mean is that when to, or cc or bcc contains an e-mail address with a certain domain, I want the message to be either deleted or moved from outbox to trash and not sent.

It is important though, that I am able to receive e-mail from those domains. I only want Kmail to prevent me from sending e-mails to those domains.

Tnx.

I'm not sure that filters allow for outgoing mails, at least how they were thought. This should be the responsibility of the mail server you send mail to, IMO. That said, I'll ask around to see if it's possible.