wmf(1) on Linux
The text c6736d726960, as Debian 2.1 (Slink), Debian 2.0 (Hamm) shipped it.
convert and index mails in html format.
Flags it lists
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-? -
-a -
-c -
-d -
-e -
-f -
-h -
-l -
-m -
-n -
-p -
-r -
-t -
-v -
-w -
-x