I have this problem: let's say that my site is www.mysite.com; everytime cronjob sends mail to external domains, emails are correctly delivered.
But any email that contains @mysite.com, which is my domain, isn't. I think that magento is trying somehow to deliver email to itself, but our email server is outside on a web hoster (aruba).
I've tried to modify "MX Entry Maintenance" into cPanel, and set that to "Remote", but nothing changed... I don't even know if that's the correct procedure.
How can I fix this? Where do I have to setup this configuration? Inside magento or inside the hoster ?