Recognize undeliverable e-mail messages

Giganews Newsgroups
Subject: Recognize undeliverable e-mail messages
Posted by:  Fred (fred@nospam.com)
Date: Sat, 04 Mar 2006

Hi!

When I send an e-mail message with a wrong address, the mail server
responds with an e-mail that contains a kind of "e-mail is
undeliverable" error message.
I query my inbox with a TIdPOP3 component. I need to know if a specific
e-mail is such an error message. I tried to analyze subject and body
text, but every mail server seems to use another text / format to
generate that mails.

Is there a property in TIdMessage that indicates that? Is there a RFC
which defines the format of a "undeliverable error" e-mail message?

Thanks for any help!

Fred

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