Greets.

I have a patch for PHPFormMail, so I created an account in the forums here. Had a hell of a time getting the confirmation email though, so this is a message to whoever takes care of the mailserver.

In order to accept your mail, I had to disable the validity checks we use to keep spammers at bay in our postfix install including:

* reject_non_fqdn_helo_hostname
The mail server is presenting itself as "host01", a non-fully-qualified domain name.

* reject_invalid_hostname
The forum is sending mail as www-data@host01.dataentropy.net, but host01.dataentropy.net doesn't resolve to any address.

This makes the mail coming from the forums look like spam, and will be rejected by a number of systems.

If you want to ensure that your emails get to everyone who wants 'em, you need to configure your MTA to say helo correctly and forum to send "From:" a valid domain name (even if the address itself bounces).

HTH
Pat Deegan