A number of hosts are currently blocking our emails. We're hoping to have the block removed as soon as possible. If you have an email with any of the following hosts, request a password reset and visit IRC to have an email sent out manually.
If an account is deleted - all records of the account are deleted and can not be recovered. We are unable to confirm when if and when an account is deleted.
You could search for your account by entering your username or user id.