Vtext will not work from my work email

[SVCRuss]

I cannot send a vtext message to my phone from my work email(cell#@vtext.com or cell#@vzwpix.com). I am the system administrator for our work email systems. Is anyone else experiencing this?  I get a message: "552 5.2.0 xxx.xxx.xxx.xxx blocked AUP#BL".  Where the xxx.xxx.xxx.xxx is the public IP address for the work email server. Are there any workarounds or recent changes?

[darbillw]

Here is the error message I get from EchoLabs.. 

Reason: vtext.com has rejected your message. Message ID: gV1wpyVwau62FgV1wpRNuX.

Reporting-MTA:Received-From-MTA:Arrival-Date:

dns; OUTBOUND2.ECHOLABS.NET [10.0.0.202]

dns; cluster1.echolabs.net [10.0.0.45]

Sun, 26 Mar 2023 14:23:48 -0400

Final-recipient:Diagnostic-Code: rfc822; [email address removed per the Verizon Terms of Service] smtp; 552 5.2.0 38.111.141.202 blocked AUP#BL

Last-attempt-Date: Sun, 26 Mar 2023 14:23:50 -0400

.

[vzw_customer_support]

Thank you! Are you experiencing this issue with other numbers you try to text? 

*Leyla