We have a server that hosts two applications that send emails for texts to subscribers of our service. We changed nothing on the server and all of a sudden, texts to @vtext.com are no longer received. SMTP logs show the message going to txslspamp3.vtext.com. Other carriers are fine, normal emails are fine. This only began in the last few weeks.
Tried a whitelist request with verizononline.net and they say our IP is not blacklisted, so I am guessing vtext.com maintains a separate blacklist. As a note, we have emails sent from 2 different domains on the server and one of them has been sending texts for over 2 years successfully before late Jan/ early Feb. How can I get our server on vtext.com's whitelist so our customers can received their requested updates.
