October 2007
Intermediate to advanced
1308 pages
161h 13m
English
Content preview from sendmail, 4th EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Verbose
Run in verbose mode All versions
The sendmail program offers a
verbose mode of operation. In this “blow-by-blow”
mode, a description of all the
sendmail program’s actions is
printed to the standard output. This mode is
valuable in running sendmail
interactively but must not be used when running in
daemon mode. Consequently, you should never set this
option in the sendmail.cf file.
Instead, you should set it from the command line
using the -v
command-line switch.
After the sendmail.cf file is
parsed and the command-line arguments have been
processed, sendmail checks to
see whether it is in verbose mode. If it is, it sets
the HoldExpensive
option (don’t connect to expensive mailers, HoldExpensive on page 1036) to false
and sets the DeliveryMode option (DeliveryMode on page 1004) to
interactive.
The forms of the Verbose option are as follows:
-v ← command-line shorthand O Verbose=bool ← configuration file (V8.7 and later) -OVerbose=bool ← command line (V8.7 and later) Ovbool ← configuration file (deprecated) -ovbool ← command line (deprecated)
The argument bool is of
type Boolean. If it is missing,
the default value is true (be verbose). If the
entire option is missing, the default value is false
(be quiet).
Note that setting restrictexpand (PrivacyOptions=restrictexpand (V8.12 and
later) on page 1069), with the PrivacyOptions option, disables this
Verbose
option.
The Verbose option
is safe. When it is specified from the command line,
sendmail retains its special privileges. Note ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.