Where I work, we got sick of random problems with public email sms gateways, ( sometimes multi hour delays, or spontaneously issues not relaying, on different carriers) we bought a hardware sms gateway from Smseagle. Been using it for close to a year now, no issues. 

We also looked at using sns from Amazon as well.
 

rgt

On Sun, Aug 6, 2023 at 11:19 AM Matthew McGehrin <drinking.coffee@gmail.com> wrote:

Hello.

For the past few weeks I have been noticing that various emails were bouncing when sending to sms.myboostmobile.com, which has been a reliable SMS gateway for 10+ years. I contacted "Advanced Support" on Saturday who said that  Boost Mobile has discontinued their SMS Email Gateway after the DISH merger. Just a heads up if you have any SMS email gateways being used that you should also periodically test them, to ensure they are still active.

Matthew