Tag bouncing emails in the database

[busboy]

My website sends out emails to registered users who want to be informed of new posts. I'm getting tons of bounced emails, now that the site is over 5 years old.

Is there a way to process bounced emails and then update the user's row in the database? I could create a column called, "Bouncing" and set that to "Yes" with this email processor. I'm sure this has done before. Can anyone point me in the right direction?

Thanks!

[Kalon]

if you require users to have valid email addresses while registered, another option you could consider, which is what the grand poo-bah on another forum did a year or so ago, is to post a notification on your website informing users that on a specified date any accounts with invalid email addresses will be switched off unless they update them with valid email addresses.