Bounce Email handling with PHP?

Question

Here is my scenario:

I have 2 email accounts: admin@domain.com and bounce@domain.com.

I want to send email to all my users with admin@domain.com but then \"r

Answer 1

Let the emails bounce to an address that is really an emailadress (with login details etc.).

Make a php script which runs ever x minutes (for example with a cron job). This php script must do the following. - Retrieve all email from the box (use for example Zend Mail) - Check for the error in the message (e.g. by searching it with regular expressions) - Do what ever is necessary.

If you want to know specifically who has bounced back you can use user specific bounce addresses. (See for example this site)