I suggest you read the Fastmail Terms of Service (in Help) before getting too excited. Be sure to read sections 6, 7, 8, and 11.
Some people have gotten into the habit of inventing a "lifetime" subscription account. There never was such an account. There was no Guest (free of charge) account at the time when Member accounts started about 15 years ago. Fastmail created a "Member" account with a one-time fee so new users could try out an account before getting a Full or Enhanced account. These accounts didn't expire at the end of a year, so there was plenty of time for Member accounts to consider an upgrade to a yearly subscription account. There was no specific expiration date, but no guarantee of the account lasting for a lifetime. See my post about this (nearly four years ago):
http://www.emaildiscussions.com/show...51&postcount=9
Bill