On Sep 5, 2013, at 5:34 PM, FliedRice <thepuref...@yahoo.com> wrote: > I have nearly ten years experience with sending emails thru a newsletter. > BOTH of the undelivered email examples are due to INVALID EMAIL ADDRESSES.
The next task will to find out why your server is sending to invalid addresses, too much of this just might find your server being blocked. If this continues, you may get flagged as a spam source. You need to find some process to automatically prune your mail list to drop these invalid addresses.
