Sean wrote,
:0
| formail -I "X-Envelope-From:" | $DELIVERY
Delivery was set to $1 in a settings file, and this handles further piped
delivery just fine. You could just use $1, but this variable assignment
makes it easier to follow in the rcfile.
You can't use $1. Procmail will invoke a shell to run that command
line, so $1 would be replaced with whatever is $1 in the shell's
invocation. Saving it in an ordinary variable is the proper way to go.
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