94
Tap
the add contact icon to add the new number in the
thread to your contacts.
Tap
the block icon
> BLOCK
to block the contact or
number in the thread, and the thread will be archived. You
can tap the icon of 3 vertical dots
> Blocked contacts
from
the Messages screen to find all blocked numbers.
NOTE:
You can press and hold a thread and tap more to select
them, and then choose to archive or delete them, or turn off their
notifications.