Re: txt.att.net outage?

["John Levine" <johnl () iecc com>]

It appears that Simmons, Jay via NANOG <jsimmons () semmes-murphey com> said:
> -=-=-=-=-=-
> This may be the issue

Sorry, but no.

> Here are some details on this Government protocol implemented by all Telecom Carriers.
>
> Why it is being done? To support FCC mandate for STIR/SHAKEN, an industry set of rules designed to authenticate
> and validate CallerID information associated with phone calls using digital signatures.
>
> SHAKEN/STIR ...

STIR/SHAKEN only affects voice calls.  It has nothing to do with SMS.

As several other people have said, if you're sending safety critical SMS messages, use
a real SMS service, not a carrier's courtesy low volume e-mail gateway.

SMS services are not free, but they are not expensive, typically about 1/2 cent per message.

R's,
John