A message communicated to inform individuals or systems that an email address has been altered. Such communications typically provide the old and new address, along with instructions for updating contact information and confirming the legitimacy of the modification. For example, a user updating their primary email on a service like Gmail or LinkedIn would trigger such a notification to their old address, often containing a link for verification.
The significance of these notifications lies in their role in maintaining secure and reliable communication channels. They prevent missed correspondence, reduce the risk of unauthorized access by alerting users to potentially fraudulent changes, and provide an audit trail for account modifications. Historically, such notifications were simpler, often plain text, but modern iterations include branding, detailed instructions, and enhanced security features like two-factor authentication prompts.