How can I block ALL text messages sent from EMAIL ADDRESSES?

It seems that even after a year, this issue is on-going and malicious actors have become more advanced. What's interesting is that when I use Windows Phone Link, the same messages appear from a different sender but when checking T-mobile usage, there's absolutely no phone number at all for the given messages being received as MMS. What's worse and somewhat counterintuitive is that to report SPAM we have to forward the message by opening them. And by opening them, anyone familiar with the Stagefright exploit would have reason to find this risky.

But if it might help find a solution, here is the message I keep getting over and over, which reminds me, to block them I have to open the message too! And by forwarding the message to SPAM (7726) triggers downloading content doesn't it? I mean, I recently disabled auto-download but I don't need it to stop auto-download of all MMS messages, just from ones not in my contact list. That seems to be a possible setting for images in emails, but I guess not MMS. But, I digress.

The MMS repeated message:

Interestingly how it shows up on Windows Phone Link

Then while logged into T-mobile and viewing usage information it just shows blank for the phone number

And just to confirm like everyone else, TMOmail.net emails are blocked

While I did see messages coming from 6245 (MAIL), they’re actually ones I signed up for:

So I just don’t understand how T-Mobile doesn’t have a number for these picture messages being received, how they’re even being received in the first place without an origin number, whether or not by opening these messages to forward them and report them actually somehow confirms to spammers the number works (as I have disabled sending read receipts and my device shows a brief notification upon opening one of these messages that it’s “converting the message into a multimedia message”) whether or not it’s a device issue, and why T-Mobile’s anti-spam features can’t seem to detect them no matter how many I report.

I get one of these nearly every day if not two and it’s just concerning if something similar to the .gif exploit might still exist where my information could be stolen, especially with today’s security of 2 factor authentication, device proximity verification, financial banking/investing apps, and mobile pay apps all on our mobile devices, what can be done?

I'm not familiar with how mobile data transmission works but can't there be a way to block autoloading particularly only from non-contacts or something? With it being disabled for everyone, that means if I don't open a message in time, the message might no longer be available.

I’ve even tried logging into the email account where it’s MYNUMBER@tmomail.net but I can't seem to get the password right for some reason even though I can log onto my T-mobile account just fine. And, if I try to go to https://my.t-mobile.com/account/profile/tmobile_id the page is just blank and doesn't load. I disabled all ad blockers, changed site permissions, and still nothing.

So disheartening to find this thread over a year old and still no workable solution with only mild hope of resolution if calling T-Mobile support. Hopefully somehow the information above might help a more tech savvy programmer of sorts figure out how to stop this.

For reference I have a Samsung Galaxy S21