On Sun, Aug 26, 2001 at 07:59:38PM +0300, Lauri Tischler wrote: > Why should anybody accept any mail without excisting from address. > Immediately upon recieving a message, any sane MTA should check that the > sender is valid, if not then dump the message. Because empty envelop-froms are required for automatically generated messages, especially bounces (mailer daemon mails= for loop prevention. Greetings Bernd