imapfeed(8) on Linux
The text a7b23acab59b, as Debian 8 (Jessie) shipped it.
Multi-host, multi-connection, streaming NNTP feeder
Flags it lists
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-C -
-M -
-S -
-a -
-b -
-c -
-d -
-e -
-h -
-l -
-m -
-o -
-p -
-s -
-v -
-x -
-y -
-z