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Kerio introduced option to auto-delete old emails from SPAM and Trash. This is definitely very useful feature, but sometimes you can need to use this feature also on different folders (in my case INBOX)...

As I really need to delete all emails older then 3 days from INBOX on several accounts, I have written small utility in .NET to do this over IMAP.

If you are interested, you may download this on my page at (source code and binary). It is called IMAP prune and it is very easy to use command line utility.

Basic usage:
IMAP_prune.exe /server: /user: /pwd: /folder: [/hours:] [/days:]

/server - IMAP server hostname (ex.
/user - IMAP username (ex. user<_a.t_>
/pwd - IMAP password
/folder - IMAP folder (ex. INBOX)
        - folder names are CASE sensitive!
        - leave empty or not set to list all availible folders for account.

/hours - delete all email odler then this value (hours)
/days - delete all email odler then this value (days)
Note: hours and days will be added together. Default value is 30 days.

imap_prune / /user:user<_a.t_> /pwd:PassWord /folder:INBOX /days:14

There should be the "at-sign" instead of "<_a.t_>" (this char is replaced by this forum).
This will also work with any IMAP enabled server.

Let me know, if you find this utility useful.

[Updated on: Thu, 08 November 2012 20:12]

Ladislav Soukup

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Good job. I just don't know much about Microsoft Programming Smile. I tend to code for Linux.

On Linux I usually use something like this:

find /store -name '*.eml' -mtime +90 -exec rm {} \;

This command will just find .eml files in the store directory that are older than 90 days then delete them. Make sure to stop KMS and also to re index those folders.



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LinuxLover wrote on Sun, 01 March 2009 03:11

find /store -name '*.eml' -mtime +90 -exec rm {} \;

Yes, this should work... I did try to use batch script to directly delete eml files from KMS store and it worked. However, KMS crashed few times when I was deleting large amount of emails using this batch. I Don't know if the batch was the problem or not, but I stopped using it... and switched to IMAP method.

Anyway, using IMAP is "cleaner" and can be used on almost any server with IMAP support.

Ladislav Soukup
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