is not set, this will be prompted for.
--suppress-from, --no-suppress-from::
- If this is set, do not add the From: address to the cc: list, if it
- shows up in a From: line.
+ If this is set, do not add the From: address to the cc: list.
Default is the value of 'sendemail.suppressfrom' configuration value;
if that is unspecified, default to --no-suppress-from.