Strip signatures and replies from emails

Question

I'm currently working on a system that allows users to reply to notification emails that are sent out (sigh).

I need to strip out the replies and signatures, so that I'm left with the actual content of the reply, without all the noise.

Does anyone have any suggestions about the best way to do this?

Answer 1

There's a really nice PHP library dedicated to the email parsing

http://williamdurand.fr/EmailReplyParser/

https://github.com/willdurand/EmailReplyParser

Answer 2

If you can assume that these emails are in plain text, just strip lines that begins with ">" as replies, and "-- " line should delimit signature. But those assumptions might not work, as not all people over internet use software that complies to rules.