> While we talk about incorrect `rcvdfrom' headers, I did an experiment: > telnetted to 25 port and entered deliberately bad HELO parameter: A bit more tweaking, and it is accepted too: Received: from mea.tmt.tele.fi ([194.252.70.2]:29198 "helo foo\(bar\)baz" ident: "root") by mea.tmt.tele.fi with SMTP id <92222-29318>; Wed, 3 Jun 1998 19:42:30 +0300 /Matti Aarnio <mea@nic.funet.fi>