Wireless Data

I use a product called eText from InfoRad which is a desktop application that allows me to send SMS to a variety of wireless users. I never had any problems sending Verizon users SMS messages until a few days ago.

The software logs on to VZW using the E-mail server smtpsp.vtext.com and SMTP protocol.

Does anyone know if VZW changed anything on their end? All other services (Sprint, ATT, etc) are still accepting messages from my software so I know that isn't the issue.

Thanks,
Marc