When choosing an email address for a user, it is important to take into consideration the following points:
- Usernames can contain letters (a-z), numbers (0-9), and periods (.).
- Letters in usernames must be lowercase. If you enter uppercase letters when creating a username, they will be converted to lowercase letters.
- Usernames may not contain dashes (-), underscores (_), apostrophes (') accents, accented letters, ampersands (&), equal signs (=), brackets (<,>), plus signs (+), commas (,) or more than one period (.) in a row.
- Periods (.) are not ignored in usernames the way they are in gmail.com accounts. If you create a user account called username, this user will not be able to receive messages addressed to user.name, or us.er.na.me, or any other combination of periods
- Usernames can begin or end with non-alphanumeric characters except periods (.), with a maximum of 64 characters
- Because abuse and postmaster are reserved words, you can't use them as usernames or aliases
- First and last names support Unicode/UTF-8 characters, with a maximum of 60 characters
For more information or if you are still experiencing issues here, feel free to reach out to us by clicking on the link here and submitting your message via the green Help button on the bottom right-hand corner.