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Posted by Gordon Burditt on 06/14/05 19:07
>I'm putting together a mass mailing application for sending out newsletters
>from a site admin area (no spam).
>
>I'm wondering how I can automate the removal of bounced addresses in this
>application. The ideal situation would be that returning mail triggers a
>script that removes the address of said message's recipient from the list.
>
>I'm thinking about a script that checks the pop3 server of the reply-to
>address and parses the inbox to look for returned mail and removes those
>addresses from my database. This script could be run periodically as a cron
>job or everytime before sending out the next mailing.
>
>Any other suggestions, ideas?
*IF* you can arrange it, point your reply-to address to a mailbox
hosted on a server that supports .forward files or aliases that
pipe into a program. (Linux or BSD host running Sendmail, Smail,
Exim, or similar). Your program (which could be standalone PHP if
it's available) gets invoked with the bounce as standard input. It
reads the headers, finds the coded info you stuck in the header to
indicate who you sent to, and uses it to flag and/or delete bouncing
addresses in your database.
There's no need for polling a pop3 box. It takes no CPU time if
nothing bounces. However, if you're doing this on a cheap hosted
web site, it's probably difficult to get this kind of access.
Gordon L. Burditt
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