How do I get rid of [email protected]?

That means you got an email back as undeliverable. It looks like you are sending something to a non-existing email.

That is a returned email, that mean that you either have the wrong email address, the receiver's mail box is full or they have you blocked. There is no way to get rid of it other that to make sure you are sending email to the correct place.

That is usually sent to you if you sent the email to a non-existent mailbox i do believe.

Who is this person to say an e-mail in undeliverable? How dare he!

MAILER-DAEMON is an automated message notifying you that the email address you are trying to send your message to is not valid or their inbox is full. in other words, you can't

Sometimes if you send someone a message, you type a small case :L: instead of a one. The computer doesn't understand it.

Don't think you can

that is actually a message telling you your email got lost in cyber space. you should look at the spelling of the email address you are trying to reach.

dont send that person any more emails..it means their address is invalid.