EMAIL ADDRESSES BOUNCING THAT ARE VALID

[gw4life]

I've notice that I've had an enormous number of bounced emails on our distribution and I took the time to review many of them and send direct emails. They were delivered.

Why would they be bouncing back from a Listmail distribution as invalid? \

I've actually deleted some addresses thinking they were no good.

[DW]

One possible reason for incorrect bounces is that your server is listed as a source of spam and is blocked from sending to certain users.  A serious block on AOL, for example (due to your host not correctly 'whitelisting' your server), can cause a huge amount of incorrect bounces. (More info here)  I highly recommend using bounce.cgi and enabling "Notify when a user is removed for bouncing" for your lists.  When you receive the notification, read it and scroll down - you should see a copy of the bounce from the receiving server and, most importantly, be able to read the exact reason the server bounced the message (ie: spamblock, user does not exist, etc)

Regards, DW