Problem receiving mail from my own mailbox

Good day,

I have a problem with receiving emails. I can log in to my newly created mailboxes, send email to external mailboxes (for example, no problems sending an email to @hotmail.com or receiving from @hotmail.com). However, I cannot receive any emails from my own mailbox. For example, I can't receive anything at (anymailbox)@my-domain.com that comes from (anymailbox)@my-domain.com

This brings my a problem, since on my asp.net website, I need to send an email to @my-domain.com when a person registers. In my code, if a put a real hotmail address as the sender and (anymailbox)@my-domain.com as the destination, the email bounces back to the hotmail sender with delivery failure: the mailbox [email protected] does not exist.

I created a ticket support and they told me that since I switched from another host to discountasp, the MX records are pointing to another server. However, if I do my own MX check, everything seems ok...

Any ideas?
Thank you, have a nice day
Ced

 

The problem ot solved by itself.
No idea why, but it works right now.
Thank you.