All,
I watched many videos and did everything I can figure out on your site. My synology mailplus server is up. I can send email no problem, it is receiving it. I am using port 2525, my firewalls are open, all looks good but cant receive for the life of me. Can you look at the DYNU DNS/DDNS setting. I am at a loss...

Synology using DYNU DDNS
Godaddy NS transferred to DYNU
MXTOOLBOX says all is well
mail.mulathaispa.com
mulathaispa@mulathaispa.com is account I am trying to get working

HELP!