mh-unseen-updated-hook

mh-unseen-updated-hook is a variable defined in `mh-e.el'.
Its value is

nil

• This variable may be risky if used as a file-local variable.

Documentation:
Hook run after the unseen sequence has been updated.

The variable `mh-seen-list' can be used by this hook to obtain
the list of messages which were removed from the unseen
sequence.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 6.0 of the MH-E package that is part of Emacs 22.1.