Postfix "skipped, still being delivered" Issues

[Pete]

Hirsh, Joshua wrote:

>Hi Everyone,
>
> I know this subject has been talked about quite often in the past, but has
>the list come up with a consensus on how to go about correcting this issue?
>
>
> The last update about this problem was when 4.24-4 was released to
>hopefully correct this problem (which, unfortunately, it didn't).
>
> After that there was a brief thread about using Postfix in a single
>installation via the hold queue and potential updates to the Postfix
>documentation, but I see this hasn't changed yet.
>
>
> Is the hold queue method now the preferred method of integrating
>MailScanner with Postfix?
>
>
>
I think so...but both methods are very simple - its is handy being able
to control in and out postfixs in split mode, maybe you can do this in
single mode as well?

> Drew Marshall posted his method of setting up the hold queue back on
>January 20th, which can be found here:
>http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0401&L=mailscanner&P=90332
>
> Has anyone noticed if implementing the hold queue via the header checks
>have a significant negative impact on performance?
>
>
I have 2 machine in production with the split postfix queue and a
replacement mavchine in my office ready for production with the HOLD method.
I havent done any thorough testing other than throwing thousands of
light weight emails at the server, but i do notice the issue of mail
sitting in the defered queue are non existant with default settings
using the HOLD method, this isnt true of the split queue method ) or
least not true of my other machines at least. The solution for me was to
reduce the child processes to one for spli mode - this made a massive
difference to my low volume machine. I change a couple opf other things
as well, but only from tips i found in the list archive.

> Is there another way to force all incoming mail to be held?
>
>
See all the header_checks doco.

Also i have attached the guides send to me by another kind list member,
whom i have forgotton the name - apologies.

> I tried changing the default values to adjust the queue processing
>(queue_run_delay, maximal_backoff_time and minimal_backoff_time
>respectively). The deferred queue files were being generated in the future
>by about an hour, but it looked like the qmgr was still running every minute
>on the deferred files and trying to deliver them.
>
>
> I'm currently processing between 30k to 50k messages per day on a single
>server, so I'd prefer to not have to stress it out if it isn't required ;-)
>
>
> Cheers
>-Joshua
>
>
>
>
>

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