@UnknownLolz
ok ty 
@UnknownLolz said:
@abanggalau
There is also a side-effect that will happen if you use Cloudflare,
You can’t receive email.
Bro who said you that you can’t receive E-mail.
When you send a mail to look any address it first lookup for the MX record of that Domain then email will be delivered to mail handler then if the certain user exists it will transfer to his account then their should be no problem!