Inactivity will cause deactivation
Mail can be an irreplaceable thing to lose.
A Mail.com account can be easy to lose by mere inactivity.
This applies to the free Mail.com accounts rather than the paid Premium Service.
For the free service, you gotta get in once every six months to keep it active.
That period is subject to change.
That period is subject to change.
In the past, the period was 12 months.
you gotta check the current terms of agreement for Mail.com.
The inactivity clause is under 2.
Term and Termination, clause 2.4.
When that happens, you may never see the warning about your account reverting to the free version.
How Can You Keep Your Mail.com Account Active?
you might keep your account active simply by logging in.
You will need to set up a reminder to enter every few months.
Select My Account from the Home screen.
Be sure you have other ways to be reached.