Automating
~~~~~~~~~~
+--no-[to|cc|bcc]::
+ Clears any list of "To:", "Cc:", "Bcc:" addresses previously
+ set via config.
+
+--no-identity::
+ Clears the previously read value of `sendemail.identity` set
+ via config, if any.
+
--to-cmd=<command>::
Specify a command to execute once per patch file which
should generate patch file specific "To:" entries.