Mail address format

The standard format for a mail address, also known as an email address, is as follows:

localpart@domain

Where:

• localpart is the part of the address that comes before the @ symbol, and is usually the username or name of the recipient.
• domain is the part of the address that comes after the @ symbol, and is usually the domain name of the recipient's email provider or organization.

Examples of valid email addresses:

• [email protected]
• [email protected]
• [email protected]

Some common rules for constructing a valid email address:

1. The localpart can contain letters (a-z), numbers (0-9), and special characters (such as periods, hyphens, and underscores).
2. The localpart cannot start or end with a period (.) or hyphen (-).
3. The domain must be a valid domain name, which is typically a string of characters separated by dots (.) and ending with a top-level domain (TLD) such as .com, .org, or .net.
4. The @ symbol must be used to separate the localpart from the domain.
5. Email addresses are case-insensitive, meaning that [email protected] and [email protected] are considered the same address.

It's worth noting that while the above format is the standard, some email providers or organizations may have specific requirements or restrictions for email addresses, such as:

• Maximum length for the localpart or domain
• Allowed characters or special characters
• Specific formatting or syntax requirements

It's always a good idea to check with the recipient or email provider to ensure that the email address is valid and can be received correctly.