I want to thank you and Viktor for replying. On Thu, Apr 08, 2010 at 07:18:38PM -0400, Wietse Venema wrote: > John Schmitt: [...] > > Transcript of session follows. > > > > Out: 220 mymachine.mydomain.net ESMTP Postfix > > In: HELO mymachine > > Out: 250 mymachine.mydomain.net > > In: MAIL FROM:<> > > Out: 250 2.1.0 Ok > > In: RCPT TO:<"???B?\" <olpcxcqkkqc...@aol.com>> > > Out: 501 5.1.3 Bad recipient address syntax [...]
A few lines like this: Message-ID: <760857006668.qgjlcbdx...@ms49.hinet.net> From: "<B3><AF><A6>B<AF>\" <olpcxcqkkqc...@aol.com> To: lili928...@yahoo.com.tw are in the headers of an email message sitting in my yahoo inbox. Is the last quotation mark escaped? Is the message deliberately engineered in order to fool mailers? As you saw, I'm fairly naive about these things. John