Our custom automatic email delivery service is hitting this problem with a couple of our clients' SMTP servers. It only happens with about three of them--the message is bounced back with the following response from the SMTP server:
SMTP error from remote mail server after end of data:host clients.host.name [XXX.XXX.XXX.XXX]: 554 Message is not RFC compliantHere's the email header generated by our custom application. Note that our own emails go through without any problems, but our application's don't.
Return-path: <[email protected]>Received: from [XXX.XXX.XXX.XXX] (helo=our.stmp.server)by clients.smtp.server with smtp (Exim 4.69)(envelope-from <[email protected]>)id 1LQNiv-0008MM-IMfor [email protected]; Fri, 23 Jan 2009 13:13:33 -0200Subject: Test MailFrom: <[email protected]>To: <[email protected]>MIME-Version: 1.0X-Priority: 3 (Normal)X-MSMail-Priority: NormalX-Mailer: ourCompany (ourcompanys.web.site)Importance: NormalContent-Type: multipart/mixed;boundary="OURCOMPANYSsoftsmtp123X4560102897C"X-Scan-Signature: e932e7231c8991cb29810b36327eaa17--OURCOMPANYSsoftstmp123X4560102897CContent-Type: text/plain;charset="iso-8859-1"Content-Transfer-Encoding: base64BASE64ENCODING--OURCOMPANYSsoftstmp123X4560102897C--Any ideas?
Best Answer
There are no Message-ID or Date headers in the messages being generated by your program. That may be why they're getting rejected.
Also, strictly speaking SMTP requires that the lines are CRLF delimited. I can't tell whether that's what you've got or not.
I don't see a Date: header either.