How to get rid of these notifications

[Thierry Almy <lists@xxxxxxx>]

Our server generates hundreds of the following messages a day:


The mail system on mail.kanti.ch encountered the following error:

    The following module was unable to complete its task.
    Please refer to the following information:


    Module Name: IMAP-Server
    Message Name: /usr/local/post.office/network/IMAP-Server
    Process ID: 3444
    Exit Value: 1


How can we stop it? cause I think the IMAP Server is working well, I 
don't see a reason to pruduce these messages.

Thierry
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