I've successfully scheduled on windows server the job pollMonitoredInboxes to retrieve new emails from a POP mail server
It has been working fine until it stops retrieving new emails
Loking a the sugar log it seems that the dupe check fails since in the table emails duplicates are found having the same message_id

Probably there i a problem in the creation of such message id since new emails are identified as existing emails

How this can be solved or investigated ?

I'm using Sugar CE 5.1.0b on WAMP