Installing and Administering Internet Services

216 Chapter4
Installing and Administering sendmail
Troubleshooting sendmail
The following example is a queue-control file named qfAA00186. The
sender is david, and the recipient is the local user carolyn. The current
priority of the message is 17. The job creation time, in seconds since
January, 1970, is 515 961 566. The last seven lines describe the header
lines that appear on the message.
P17
T515961566
DdfAA00186
Sdavid
Rcarolyn
Hreceived: by lab; Thu, 8 May 86 12:39:26 mdt
Hdate: Thu, 8 May 86 12:39:26 mdt
Hfrom: David <david>
Hfull-name: David
Hreturn-path: <david>
Hmessage-id: <[e-mail]>
Happarently-to: carolyn
P The current message priority. This is used to order the queue. Higher numbers mean
lower priorities. The priority decreases (that is, the number grows) as the message sits in
the queue. The initial priority depends on the message precedence, the number of
recipients, and the size of the message.
M A message. This line is printed by the mailq command and is generally used to store
status information (that is, the reason the message was queued). It can contain any text.
R A recipient address. Normally this has already been completely aliased, but it is actually
re-aliased when the queue is processed. There is one line for each recipient.
S The sender address. There can be only one sender address line.
T The job creation time (in seconds since January, 1970). This is used to determine when
to time out the job.
Table 4-7 Lines in Queue-Control Files
Initial
Letter
Content of Line