Cannot Send sms

I am not able to send email pages (SMS) after receiving a voicemail. My mail queue is full of messages that have not sent yet. I am able to receive voicemail emails just fine. I have system admin pro and tried the debug feature and get the below response. Can anyone tell me what is wrong?

Mar 29 23:04:34 freepbx postfix/smtp[22013]: C21EF116017D: to=[email protected],[]:25, delay=1147, delays=1146/0.04/0.71/0, dsn=4.0.0, status=deferred (host[] refused to talk to me: 554 cmsmtp ESMTP server not available - POL103 - IgyojH3OcbLHp)

The Verizon server isn’t talking to you. Could be lots of things, but it’s definitely an email (Postfix) problem.

what are some steps I can try?

Verizon severely limits access to their SMS email gateway. I’m a Verizon subscriber and regularly find that I’m blacklisted. I don’t know what turns it on or off.

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