Re: X-Mailer and headers when sending mail

On Thu, Mar 09, 2006 at 05:27:11PM -0800, Angelo Zanetti wrote: > Hi guys. > > When adding additional headers to an email that gets sent from the mail > function. What purpose does the X-Mailer have? Any X-* header is generally a header that is not a standard but a way to trace things. Or still in eXperimental mode, not a standard yet, but a (becomming) common practice. X-Mailer:, has been in practice, to specify what software version/versions automatically mailed the email, usually from sort of script, ie: X-Mailer: phpmailer-3.2/php-4.3 > > Also are the following linked: > > -X-Priority > -Importance > -X-MSMail-Priority No. Personally, those things are rather useless, practically everyone sends message with those flags set at 'High', my client ignores those. > > Another question is can I omit the Message-ID for the email? or will this > result in some mail servers viewing the mail as spam? What criteria do I > use to generate the Message-ID? The message-id is generated by the MTA you shouldn't be generating this on your own. The only basic headers you ever (really) need to send is: To: <valid email address> From: <valid from address> Subject: A Subject Subject even isn't 100% needed. > > I've seen: > $headers .= "Message-ID: > > <".date("YmdHis")."you@".$_SERVER['SERVER_NAME'].">\n"; > > is this ok? No, forget about message-id in your headers. > > Perhaps if someone has a link on the headers for a mail that could help me > it would be much appreciated. There are quite a few on google, I'm not entirely clear what focus you desire on the headers you desire. Curt. -- cat .signature: No such file or directory