I still have not received an email to verify my in-game account. I've already followed these steps:
Follow these steps:
Load into the server and try registering a "new" account with the exact same details and information as your existing account.
Click register; it'll tell you the account already exists.
Close RAGE:MP and reload into it, then attempt to login.
The verification email should have been sent by this time. (Huge thanks to @TwitchDadTV for this!)
If this does not work, contact a Web Developer or above!
This did not work. Please help.