[cce]macro index M “T.*\n;WN” “Mark all messages as read”[/cce]
However, this is slow because it performs a tag matching against the Regex pattern “.*”, which is computationally intensive. Another post recommended using ~A instead of .*, but this still has to tag everything in your mailbox and that kind of sucks big-time. So, I came up with this instead:
[cce]macro index <esc>m “T~N<enter>;WNT~O<enter>;WO\CT~T<enter>” “mark all messages read”[/cce]
It first selects all messages marked “New” and untags them. Then, it selects all messages marked “Old” but unread and untags them as well. Finally, it gets rid of all the tag markings by doing
Seems to be working pretty snappily.