How do we validate email addresses in Zoho | Troubleshooting - Zoho Accounts

How do we validate email addresses in Zoho?

In Zoho, we validate email addresses to ensure they are properly formatted and follow the syntax rules outlined below.

Structure and syntax of an email address

An email address consists of two parts, separated by the "@" symbol.

Username - The portion before the "@" symbol that identifies the individual user (e.g., john.doe in john.doe@example.com).

Domain - The portion after the "@" symbol that specifies the name of the organization or company that owns the email address (e.g., example.com in john.doe@example.com).

To ensure your email address is valid, please follow these rules:
  1. The username can include:
    1. Uppercase and lowercase letters (A-Z, a-z).
    2. Latin extended characters (Ā- Ž,ā-ž).
    3. Digits (0-9).
    4. Special characters: ! # $ % & ' * + - / = ? ^ _ . { | } ~`.
    5. Period (.) is allowed, but cannot be at the start, end, or appear consecutively.
    6. Must not exceed 64 characters.

  2. The domain part must follow valid domain name syntax. It can include:
    1. Uppercase and lowercase letters (A-Z, a-z).
    2. Digits (0-9).

Examples

  1. Valid email addresses:
    1. john.doe@example.com
    2. user+mail@example.com
    3. $B1234@example.com
    4. _somename@example.com

  2. Invalid email addresses:
    1. .abce@example.com
    2. abc..def@example.com
    3. username1@@example.com
    4. user231@example
    5. the_email_which_consists_of_more_than_64_characters_in_the_username@example.com
    6. username1.@example.com