Hi, i have this error when i try to send an email to my server:

This is an automatically generated Delivery Status Notification

Delivery to the following recipient failed permanently:

fabio@.......ab.com

Technical details of permanent failure:
PERM_FAILURE: SMTP Error (state 13): 550-nf-out-0910.google.com
[64.233.182.187] is currently not permitted to relay
550-through this server. Perhaps you have not logged into the pop/imap server
550-in the last 30 minutes or do not have SMTP Authentication turned on in your
550 email client.

I made a mail troubleshotter and i found that all record mx is set to old ip of my old server. So can i modifiy this record mx for all domains to virtual_user to local_delivery?