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AnswerRe: Problem is "auto reply emails" [modified] Pin
Furty28-Oct-08 2:56
Furty28-Oct-08 2:56 
It sounds like you need to be looking at the "In-reply-to" header of incoming messages, and comparing that to the "Message-id" of your outgoing mail. By matching the two and defining a time threshold between send and receive you should be able to detect auto-responders with reasonable accuracy.

It would fair to assume that anything that arrives back within 10-15 minutes of sending would be an auto-responder - well, either that or someone who's way too stressed out, or hopped up on stims Wink | ;)

The only real foreseeable problem is going to be receiving mail servers that delay incoming messages for n minutes/hours (an anti-spamming technique) - if delayed enough it's going to be difficult to ascertain if it's an auto-response or a human response in code..

Google around for "email message headers" for a grounding.

modified on Tuesday, October 28, 2008 9:03 AM

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