Greets -

I am attempting to trobleshoot and fix an problem with mail from the wordpress contact page 7 being blocked to particular readers.

After I get a mail in the form, the next seems within the header:

mailed-by: cl67.justhost.com

I have requested the Web service provider that hosts the non-receiving email options to permit mails out of this domain however they say they require the "actual delivering address". If anybody has any idea where i'm able to find this or can reveal the contact page 7 mail generation process I'd be thankful!