WordPress MU

Hello.

I am new to Wordpress and have been testing an installation of the multi-user version. I've had trouble with email verifications and used a packet tracing tool to record the conversations. I am using:
Windows 2000 Server with EasyPHP1-8
Wordpresss MU 1.0-RC4
PHP is setup to use an SMTP relay.

The messages coming from Wordpress have varying levels of detail in the header.

A registration email does not have the Mime-Version or the Content-Type information in the header, but a password reset does.

Our smtp relay refuses to accept the emails without mime-version and content-type claiming they do not meet RFC compliancy.

Is there any way for me to rewrite a function to make sure those are included in the headers on all calls to send email?

Thanks,

Joel

Best bet would be to submit a ticket to Trac and get Donncha to look at it. Probably just an oversight.