Mail rely

I think you meant "mail reply"!

A mail reply is a response to an email or a message sent through a mail service. It's a way to respond to someone who has contacted you through email or a messaging platform.

In the context of email, a mail reply is usually triggered by clicking the "Reply" button in an email client, which allows you to respond to the original message. The reply email will include the original message and any additional text or attachments you add.

In other messaging platforms, such as social media or instant messaging apps, a mail reply might be referred to as a "response" or "reply".