Hello Cliff,
I resolved the issue that was being experienced that showed the blank screen and the header output issue. My apologies.
To answer your question, yes, the end users email address is correct. After further diagnosis w/ the host, there looks to be an issue sending mail from the site regardless of where trying to send from i.e, contact form, forgot password, user registration, etc.
It look as if this is host problem and not a plugin issue. Thank you for the reply and hopefully my host can resolve.
Regards,
Darren