Arobase email header

The arobase email header!

The arobase header is also known as the @ symbol, and it's used to separate the local part of an email address from the domain name. It's a fundamental part of the email address syntax.

Here's the breakdown:

[email protected]

• localpart: the part before the @ symbol, which is usually the username or the name of the recipient.
• @: the arobase symbol, which separates the local part from the domain name.
• domain.com: the part after the @ symbol, which is the domain name of the email provider or the organization.

For example, in the email address [email protected]:

• john.doe is the local part.
• @ is the arobase symbol.
• example.com is the domain name.

The arobase symbol is used to indicate that the local part is part of the email address, and that the domain name is the authority responsible for the email address.

In email headers, the arobase symbol is used to separate the sender's email address from the recipient's email address, as well as to separate the email address from other email headers, such as the subject line or the message body.

For example, in an email header, you might see something like this:

From: [email protected]

In this case, the arobase symbol is used to separate the sender's email address ([email protected]) from the rest of the email header.

I hope that helps clarify the role of the arobase symbol in email headers!