=== Character Limitations in an Email Address ===

**TL/DR:** {64} @ {255}, max {255}

The maximum length of an email address is 254 characters. Every email address is composed of two parts. The local part comes before the '@' sign, and the domain part follows it. In "user@example.com", the local part is "user", and the domain part is "example.com." In detail:

**The local part must not exceed 64 characters** and
the **domain part cannot be longer than 255 characters**;
the **total combined length** of all characters (including '@' and punctuation) **must not exceed 254 characters**, however.