HP-UX Mailing Services Administrator's Guide

Configuring and Administering Sendmail
Troubleshooting Sendmail
Chapter 2 99
Understanding syslog Entries
Sendmail logs the following:
• Failures beyond its control (SYSERR).
• Administrative activities (for example, rebuilding the aliases
database, and killing and restarting the daemon).
• Events associated with mail transactions.
Log entries marked SYSERR indicate either system failures or
configuration errors and may require the attention of the system
administrator.
Each system log entry for a mail transaction has a queue ID associated
with it. All log entries for the same input message have the same queue
ID. Log level is normally set to 10 in the configuration file. At this level,
the following information is logged for each delivery:
message-id= If a message had a Message ID header line when it was
input to Sendmail, this is logged. Sendmail can also be
configured to add a Message ID header line if none is
present. This ID uniquely identifies a message and can
be used to trace the progress of a message through mail
relays.
from= The sender of the message and the message size are
logged.
to= The recipient of the message. One message may have
multiple recipients. Sendmail logs a separate entry for
each separate delivery attempt it makes, so multiple
recipients on the same host may appear on the same
line, but multiple recipients on different hosts will
appear on different lines. The delivery status of the
message (whether message succeeded, failed, or was
queued), the mailer, and the host used are logged.
14-98 Debugging information. This information must be
interpreted by your HP service representative.
Table 2-5 Sendmail Logging Levels (Continued)