automatic manipulation of email messages

Question

Does it exist any web service that "filters" any email message allowing to change the subject or the content on a regexp basis and then forward it to my webmail address?

For example: I want to append automatically the string "IMPORTANT! " to the subject of every message I receive with the subject containing "expiry", or I want to change any occurrence of "h2>" in the body to "h1>".

Answer 1

You don't say how you read your email (offline, webmail) and what mail provider or software you are using, but here some pointers:

• you can use procmail if your mail servers provide it or you can do this on your client side
• alternatively this can be done in many email readers

If this doesn't apply find a mail provider that has procmail support and move all your mail through it.