The default
configuration is to not define this option. The recommended value for path when defining
this option is /var/tmp/dead.letter (but setting this option is not recommended).
The DeadLetterDrop option is not safe. If specified from the command line, it can cause
sendmail to relinquish its special privileges.
24.9.30 DefaultAuthInfo
Source of AUTH information Deprecated
When sendmail is compiled withSASL (?§3.4.48 on page 137) defined, authenticated
connections can be supported. When negotiating an authenticated connection certain
information is required, specifically and in this order:
??? Th euser id is the identifier sendmail uses to check allowable permissions. In general,
this should never be root.
??? Th eauthorization id is the identifier of the user allowed to set up the connection. In
general, this should never be root.
??? Th epassword is the clear text password used to authorize the mail connection. This
should be a password dedicated to this use, not the plain text copy of the user??™s
password.
??? Th erealm is the administrative zone for authentication. In general, this should be your
DNS domain. If no realm is specified (this item is blank), sendmail will substitute the
value of the $j macro (?§21.9.59 on page 830).
??? Th emechanism is the preferred mechanism for connection authentication. This should
match one of the mechanisms listed in the AuthMechanisms option (?§24.
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