mailsync(1) on Linux
The text 6a8b7ee0099c, as Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
Synchronize IMAP mailboxes
Flags it lists
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-D -
-M -
-d -
-f -
-h -
-m -
-n -
-s -
-t -
-v -
-vb -
-vp -
-vw