I have my website running on my provider and installed the mail script.
After running it I see no mail has been send. I used firstname.lastname@example.org so I can receive a mail from the website.
I still haven't figured out why but after trying my gmail account the script did work!
dns and mail is hosted elsewhere for mydomain.com.
So mail does work with every mail address except mydomain.com
Has this something to do with my USP?