We had troubles with our email server configuration which resulted in certain email providers (especially mai.ru) rejecting our emails.
This has now been fixed.
Most providers now accept our emails, but they might still classify it as SPAM. If you sign up for FAF, reset your password or expect emails from the forums, please also check your SPAM folder.
To help to get our IP whitelisted by email providers, please make sure that you mark all emails from FAF as “not spam”.
Here’s a list of provider known to block our emails (we’re working on getting un-blocked):