Tb's addon suggestion [Doesn't contain my e-mail "Filter"]

[delicacy]

The creation of addon: Add a special "Doesn't contain my e-mail" value to the email filters for
the "To" field & allow the filter to automatically determine which email addresses are mine,
so i don't have to re-edit that filter each time i add or remove a personal email.
No user defined string to add so "greyout data/string field if possible"
when i select "Doesn't contain my e-mail". All i'd have to do is select delete
for action, and that filer would detect all my email addresses & if none of them
is present, they'd auto deleted. (foxmail has that option..)

[DanRaisch]

Moving to Extension Development.