I got this message on Freebitco.in recently
Your email provider seems to be rejecting our emails. We recommend that you change your email address to one that is able to receive emails from us (by clicking on the PROFILE button in the top bar) so that you can receive password reset emails and payment notifications from us in the future.
But until now I haven't noticed that I don't get emails from Freebitco.in. I always get messages about withdrawal, reward points bonusses and etc. Should I change my email address?
I think I would. You need to set 2fa before you can change the email address. After you have done that then you don't need to confirm withdrawals etc. by email anyway. I've already had to deal with a couple of hacked accounts caused by people having their email hacked first and then the password reset via recovery email. That couldn't have happened with 2fa enabled so I'd recommend it as being far safer.