UseErrorsTo
Use Errors-To: for errors V8.1 and later
Ordinarily, V8 sendmail sends
notification of failed mail to the envelope sender.
It specifically does not send notification to the
addresses listed in the Errors-To: header. It does this because
the Errors-To:
header violates RFC1123. For additional information
about the Errors-To: header, see Errors-To: on page 1156.
The UseErrorsTo
option is available to prevent older versions of
mail-reading software from failing. When set, it
allows error notification to be sent to the address
listed in the Errors-To: header in addition to that
sent to the envelope sender.
The forms of the UseErrorsTo option are as
follows:
O UseErrorsTo=bool ← configuration file (V8.7 and later) -OUseErrorsTo=bool ← command line (V8.7 and later) define(`confUSE_ERRORS_TO',bool) ← mc configuration (V8.7 and later) Olbool ← configuration file (deprecated) -olbool ← command line (deprecated)
The optional argument bool,
when missing, defaults to true (errors are sent to
the Errors-To:
header). If this option is missing entirely, it
defaults to false (the Errors-To: header is ignored).
The UseErrorsTo
option is not safe. If specified from the command
line, it can cause sendmail to
relinquish its special privileges.
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