For some unknown reason, verizon.com is not blocking all emails from OptiBoard.

SMTP error from remote mail server after initial connection:
host relay.verizon.net [206.46.232.11]: 571 Email from 74.50.23.146 is currently blocked by Verizon Online's anti-spam system. The email sender or Email Service Provider may visit http://www.verizon.net/whitelist and request removal of the block. 140416
Because of this, I have had to block any new registrations from verizon.net and may have to put some existing accounts on Bad Email status.

I have already sent my request to Verizon to have Optiboard put on their whitelist. Meanwhile if this is an issue for you, it might help if you could call them and confirm this request.

Thank you all and sorry for any inconvenience.

Steve