sendmail’s exit( ) Status
Like any other program under Unix, sendmail can return meaningful values to the environment and thus to you. All the possible exit values are documented in <sysexits.h>, along with the values assigned to each name. Here, we provide a bit more explanation about the most commonly used names.
The relationship between each exit value and its corresponding DSN
detail is shown in Table 20-4 in
error. That table also summarizes the values
described here.
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