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When you get a message from a "MAILER-DAEMON" or a "Mail Delivery Subsystem" with a subject similar to "Failed Delivery," this means that an email you sent was undeliverable and has been bounced back to you. These messages are sent automatically and often include the reason for the delivery failure.
The term was coined by the programmers at MIT's Project MAC.According to Fernando J. Corbató, who worked on Project MAC around 1963, his team was the first to use the term daemon, inspired by Maxwell's demon, an imaginary agent in physics and thermodynamics that helped to sort molecules, stating, "We fancifully began to use the word daemon to describe background processes that worked ...
• Your inbox is full of MAILER-DAEMON notices for messages you didn't send. • Your Address Book contacts have been erased or there are new contacts you didn't add. Review your AOL Mail settings. Hackers may change the settings in your AOL Mail account to disrupt your inbox or get copies of your emails.
They are frequently sent with a From: header address of MAILER-DAEMON at the recipient site. Typically, a bounce message will contain several pieces of information to help the original sender in understanding the reason their message was not delivered: The date and time the message was bounced, The identity of the mail server that bounced it,
Why did I receive an email from MAILER-DAEMON? Learn about why you might have received a delivery failure notice, and how to determine what's inside the message. AOL Mail for Verizon Customers · Apr 30, 2024
Within the Internet email system, a message transfer agent (MTA), [1] mail transfer agent, [2] or mail relay is software that transfers electronic mail messages from one computer to another using the Simple Mail Transfer Protocol. [3]
A compromised (hacked) account means someone else accessed your account by obtaining your password. Spoofed email occurs when the "From" field of a message is altered to show your address, which doesn't necessarily mean someone else accessed your account. You can identify whether your account is hacked or spoofed with the help of your Sent folder.
This page was last edited on 8 June 2024, at 02:23 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...