What could be the problem when we are able to sync wirelessly just fine,
but we are not getting updates thru sms push? The server log says, :Error
sending SMTP message: '550 5.7.1 Unable to relay for xxxxxx@vtext.com"

We have tried enabling the relay throughout thinking that it may be a smtp
relay issue but it's still not pushing, after opening relay.

Anything else should we check? please advise.

Thank you!