This is not recommended at all. My recommendation is to reduce the time 
Exchange is able to detect duplicates. By default Exchange keeps track of 
duplicate messages for 7 days.

For futher information and an explanation about the registry keys to be set to 
change the above see: 
http://technet.microsoft.com/en-us/library/dd577073(EXCHG.80).aspx

Regards,
Roland



> -----Ursprüngliche Nachricht-----
> Von: [email protected] [mailto:baruwa-
> [email protected]] Im Auftrag von Brent Addis
> Gesendet: Mittwoch, 23. Februar 2011 08:18
> An: 'Baruwa users list'
> Betreff: Re: [Baruwa] Some more questions regarding baruwa
> 
> Short term however:
> 
> http://support.microsoft.com/kb/975990
> 
>    1. Click Start, click Run, type regedit, and then click OK.
>    2. Locate and then click the following registry key:
> 
> HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/MSExchangeIS
> /ParametersPrivate
> 
>       If the ParametersPrivate registry subkey does not exist, follow these
> steps:
>          1. On the Edit menu, point to New, and then click Key.
>          2. Type ParametersPrivate, and then press ENTER.
>    3. On the Edit menu, point to New, and then click DWORD Value.
>    4. Type Disable All Duplicate Detection, and then press ENTER.
>    5. On the Edit menu, click Modify.
>    6. Type 1, and then click OK.
>    7. Locate and then click the following registry key:
> 
> HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/MSExchangeIS
> /ParametersPublic
> 
>       If the ParametersPublic registry subkey does not exist, follow these 
> steps:
>          1. On the Edit menu, point to New, and then click Key.
>          2. Type ParametersPublic, and then press ENTER.
>    8.
>    9. On the Edit menu, point to New, and then click DWORD Value.
>   10. Type Disable All Duplicate Detection, and then press ENTER.
>   11. On the Edit menu, click Modify.
>   12. Type 1, and then click OK.
>   13. Exit Registry Editor.
> 
> It's not really recommended however.
> 
> 
> 
> Brent Addis
> Systems Integration Specialist
> 
> Network Service Providers Ltd.
> Unit 32a, 88 Cook St, Auckland 1010
> PO Box 90208, Victoria West, Auckland
> 
> Email: mailto:[email protected] | Customer Service:
> [email protected] | Web: http://www.nsp.co.nz
> Tel: +64-9-306-0230 | Support: +64-9-306-0234 | Fax: +64-9-306-0239
> 
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> 
> -----Original Message-----
> From: [email protected] [mailto:baruwa-
> [email protected]] On Behalf Of Ehle, Roland
> Sent: Wednesday, 23 February 2011 8:14 p.m.
> To: Baruwa users list
> Subject: Re: [Baruwa] Some more questions regarding baruwa
> 
> Hi Andrew,
> 
> not necessary to replace the message id. If you could just remove the original
> one, the MTA should do the job and add a new one.
> 
> Regards,
> Roland
> 
> > -----Ursprüngliche Nachricht-----
> > Von: [email protected] [mailto:baruwa-
> > [email protected]] Im Auftrag von Andrew Colin Kissa
> > Gesendet: Dienstag, 22. Februar 2011 16:56
> > An: Baruwa users list
> > Betreff: Re: [Baruwa] Some more questions regarding baruwa
> >
> >
> > On 22 Feb 2011, at 5:14 PM, Ehle, Roland wrote:
> >
> > > sorry for being a pain, but I have some more questions:
> >
> > No problem,
> >
> > >
> > > 1. Quarantine Release
> > > There is a problem with released mails, especially with mails, that
> > > had
> > blocked attachments and if the recipient has his mailbox on a
> > Microsoft Exchange Server: When releasing the mail, the original
> > message-id and sender are kept. Exchange Servers will not deliver the
> > mail, if a message with the same message-id has already been delivered.
> >
> > I never knew this.
> >
> > >
> > > To prevent this the MailWatch routine for releasing message was to
> > > add
> > the original message as an attachment to a new message.
> > >
> > > Is it possible to have this function in Baruwa
> >
> > No, i will not implement it this way as it is ugly, what i will do is
> > change the message id by replacing it with a new auto generated id.
> >
> > >
> > > 2. Scanners
> > > I found a link "Scanners" under Settings in the web interface. In my
> > > case I
> > get No scanning nodes found. What does "Scanners" stand for?
> >
> > That is a stub for the SQL configuration where you will be able to
> > configure mailscanner hosts from within Baruwa using the new SQL
> > config module introduced in version 4.80.10-1
> >
> >
> > --
> > Baruwa - www.baruwa.org
> >
> > _______________________________________________
> > Baruwa mailing list
> > [email protected]
> > http://lists.baruwa.org/mailman/listinfo/baruwa
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