Sun Microsystems Sun Workstation 100U System Manager's Manual page 335

Sendmalllnltallation and OperatloD Gulcle
&
d The data file. The messa&e body (excludinl the header) is kept in this file.
The lock file. If this file exists, the job is currently beinl processed, and a queue
run will not process the file. For that reason, an extraneous l/file
CaD
cause a job
to apparently disappear (it wiD not even time out!).
D This file is created when aD id
is
beiDI created. It is a separate file to iDsure that
no mail can ever be destroyed due
to
a race condition. It should exist for no more
than a few milliseconds at any given time.
q The queue control file. This file cODtains the informatioD neceseary
to
process the
job.
t A temporary file. These are an image of the dfile when it is being rebuilt. It
should be renamed to a dfile very quickly.
x A transcript file, existinl during the life of a session showinl everything that hap-
pens during that session.
The qJ file is structured as a eeries of lines each beginning with a code letter. The
lines are
as
rollows:
D
The name or the data file. There may only be ODe 01 these lines.
H A header definitioD. There may
be
any number of these liDes. The order is
important: they represent the order iD the final message. These use the same syn-
tax
as
header definitions in the configuration file.
R
A recipient address. This will Dormally be completely aliased, but is actually
realiased when the job is processed. There will be one line for each recipient.
S The sender address. There may only be one of these lines.
T The job creation time. This is used to compute when to time out the job.
P The current message priority. This is used to order the queue. Higher numbera
mean lower priorities. The priority increases as the messale sits iD the queue.
The initial priority depends OD the message class aDd the size of the message.
M A message. This liDe is printed by using BendmtJil with the -bp 8ag, and is gen-
erally used to store status information. It caD contain any text.
As
an example, the rollowiDg is a queue file sent to "mckusickOcalder" and
"wnj":
DdfA13557
Seric
T404261372
P132
Rmckusick@calder
Rwnj
H?D?date: 23-0ct-82 15:49:32-PDT (Sat)
H?F?rrom: erie (Erie AllmaD)
H?x?Cull-name: Eric Allman
Hsubject: this is an example message
Hmessage-id: <8209232249. 13557GUCBARPA.BERKELEY .ARPA>
Hreceived: by UCBARPA.BERKELEY .ARPA (3.227 (10/22/82))
id A13557; 23-0ct-82 15:49:32-PDT (Sat)
HphoDe: (415) 548-3211
HTo: mckusickOcalder, wDj
This shows the name 01 the data file, the person who sent the meseage, the submission
time (iD seconds since January 1, 1970), the message priority, the meMage class, the
recipients, and the headers for the message.
Version 4.1
Last Mod 8/10/83