Hello I'm having problems with sending mails which require a receiver to acknowledge reception of a mail (I guess it's called receipt in Microsoft talk). I'm sending these mails thru my qmail server, and it returns them to me with an error. Is there a switch somewhere in qmail to enable this ? Cheers, -- Lukasz Felsztukier : : d i g i t a l O n e : : interactive media house : : http://www.digitalone.pl : : Al. Kosciuszki 1, 90-418 Lodz, Poland : : tel./fax [+48 42] 632.89.74