Hello, I'm setting up a service that uses text messages for something like 2FA: it sends a text message containing a code back to a person.<p>However I apparently have to go through this 10DLC campaign registration process [1] because right now the number is outright blocked by many carriers. It's odd though because 10DLC seems to be strongly oriented to marketing uses for texting, which I'm not doing.<p>Anyway, getting to specifics: For "Campaign and content attributes" I think NONE of the options apply, but I'm also worried that I will be rejected if I don't include "opt-in" and "opt-out" keywords and text.<p>I've checked 2FA messages still on my phone from various big corps and they don't include opt-in/out text. But they are huge and I'm a tiny unknown; would it simply be on safer side for me to include opt-in/out in the application, just to reduce the chance of rejection?<p>Appreciate any help, thanks!<p>[1] https://support.telnyx.com/en/articles/6339152-how-to-create-a-10dlc-campaign