Max Children > 1: same message gets delivered more than once

[Beat Jucker]

On Mon, May 09, 2005 at 04:06:43PM +0200, Steen, Glenn wrote:
> > May  9 14:21:47 cicero2 MailScanner[11542]: User's home directory /home/postfix does not exist
> This looks fishy. Perhaps worth fixing?-)

Postfix entry in /etc/shadow is locked. Postfix entry in /etc/passwd
should only get used for UID/GID. To be shure that this isn't a problem
I have created /home/postfix.

> Definitely getting hold of the same message twice... Are you using
> the (recommended) hold feature/1-postfix-setup, or the (old)
> defer/2-postfix-setup?

I think I have used the recommended setup (I have used the From attribute
because of logged details in mail logfile):
  in header_checks: /^From:/ HOLD MailScanner
  in master.cf: pickup fifo  n  -  n  5  1  pickup -o receive_override_options=no_header_body_checks



On Mon, May 09, 2005 at 02:22:46PM +0100, Martin Hepworth wrote:
> sounds like the file locking is messed up. What MTA (and vesrion)are you
> running and what have you got in Mailfcanner.conf for "Lock Type ="?

MTA: Postfix mail_version = 2.0.16-20030921 @ Solaris 9

As far as I understand my problem has nothing to do with Postfix
because Postfix puts message into hold queue. From there MailScanner
is fighting about (picks up) the message for spam/virus scanning.

However all the MailScanner children fetches the message.
Sounds like a lock problem but I don't know how MailScanner
handles this concurrency (flock ... ?).
  >May  9 14:21:36 cicero2 MailScanner[11541]: Using locktype = flock

in MailScanner.conf:
  # How to lock spool files.
  # Don't set this unless you *know* you need to.
  # For sendmail, it defaults to "flock".
  # For sendmail 8.13 onwards, you will probably need to change it to posix.
  # For Exim, it defaults to "posix".
  # No other type is implemented.
  Lock Type =

I tried also: "Lock Type = posix"
but the same behaviour: message gets delivered N times
  May  9 16:07:19 cicero2 MailScanner[11973]: Using locktype = posix
  May  9 16:07:19 cicero2 MailScanner[11973]: Creating hardcoded struct_flock subroutine for solaris (misc-type)
  ...
  May  9 16:07:30 cicero2 MailScanner[11974]: Using locktype = posix
  May  9 16:07:30 cicero2 MailScanner[11974]: Creating hardcoded struct_flock subroutine for solaris (misc-type)
  ...
  May  9 16:08:06 cicero2 MailScanner[11974]: Saved archive copies of DDA4F76C0A.DC5F9
  ...
  May  9 16:08:07 cicero2 MailScanner[11973]: Saved archive copies of DDA4F76C0A.36885

Regards
-- Beat

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