SMTP is specified by RFC's 821 and 822. RFC 822 section 3.1 states:

"A message consists of header fields and, optionally, a body. The body is simply a sequence of lines containing ASCII characters. It is separated from the headers by a null line (i.e., a line with nothing preceding the CRLF)."

which implies that header fields following the first null line will be interpreted as part of the body, and not used for message formatting.

References:
http://www.faqs.org/rfcs/rfc821.html
http://www.faqs.org/rfcs/rfc822.html

Thanks for posting the RFCs... I'll check them out.

UPDATE: Interesting, if dry, reading. I'm going to send you another TalkMail with the content-type moved up a line... let me know how it displays for you.

Although I haven't read those RFCs before, I did refer extensively to the mail() function on php.net, and followed the advice of the various examples shown that pointed out errors between different servers and email clients, mainly with LF/CRs.

Hopefully this change won't break it for those people that are reading TalkMail with no problems, although it didn't seem to change anything when I tested it again.

[This message has been edited by dan at WebFlyer (edited 11-04-2003).]

Thanks! Looks great now in Outlook Express.

Love to see members working together like this to make better products and resources for FlyerTalk. Thanks all. We'll also tweak the overall design as well in upcoming issues.