How can I block unblockable messages?

[AC Question]

unblockable messages

In my email inbox, certain spam messages are not blockable. On these messages, if I select them with the checkbox, the option to block at the bottom of the screen is shaded out (not available) and if I open the message and go to the pulldown, the option "Register as Spam" is also shaded out (not usable).

How are spammers able to keep me from blocking their messages on my phone and how can I correct it?

 

[Edbun]

xxx

 

[Edbun]

View attachment 229664 here is a screenshot of what I mean. Note that the Register as Spam option is disabled. It is the same in my other example. BTW, I'm the original poster.