Fyi meaning in mail addresses

In email addresses, "FYI" is often used as an abbreviation for "For Your Information". It's a common convention in email subject lines or in the body of an email to indicate that the sender is providing additional information or context that may be useful or relevant to the recipient, but not necessarily critical or urgent.

For example:

• Subject: FYI: New project timeline
• Body: Hi John, just wanted to let you know that the project timeline has been updated. You can find the new schedule attached to this email. FYI, we've also added a new task to the project scope.

In this context, "FYI" is used to indicate that the information being provided is supplementary or informative, rather than requiring immediate action or attention.