It's now impossible to send emails to any business from mail.com as the domain seems to be blocked by email gateways. I have contacted premium support about this many times over the past couple of months but no reply until a couple of days ago when one of their guys responded telling me to check my spam folder and that I should assume emails were delivered unless they were bounced back.
Duh! I have sent them around six examples of rejected messages with all the warning stuff that came back with them.
Given the quality of support I am starting to wonder how much longer this organisation is going to be around. They have nowhere near enough staff and from what I have read on other posts here their attitude and competence is pretty poor.
I am migrating to another provider as fast as I can. Anyone with stuff on their cloud should retrieve it asap.