sendmail, 4th Edition

Select Whom to /parse or /try with /tryflags

Before we cover the /parse and /try commands, we need to mention the /tryflags rule-testing command because it is used to select the sender, recipient, headers, and envelope for the /parse and /try commands. The /tryflags command is used like this:

/tryflags h             ← set headers
/tryflags e             ← set envelope
/tryflags s             ← set sender
/tryflags r             ← set recipient
/tryflags er            ← set envelope recipient

The arguments are single letters that can appear in uppercase or lowercase and in any order. Any letter other than those shown is silently ignored.

The default setting when sendmail first starts to run in rule-testing mode is er for envelope recipient. Omitting the argument causes sendmail to print the following usage statement:

Usage: /tryflags [Hh|Ee][Ss|Rr]