Are the solo ads from your TAE being seen? Are your OPEN rates and CTRs low?
Look at your “from” address for your TAE
Every once in a while, change your FROM email address.
Many times, messages are filtered, end up in spam folders, or simply ignored
because the filters key in on your ADMIN “FROM” ADDRESS on your site.
Sometimes your site could even be blacklisted.
If people really want to block you, there is nothing you can do about that but
with simple filtering, you are buying time until people figure out that they are
receiving these emails and must update their filters.