While storing an email from Connect to Outlook the following message occurs: "0 of 0 mails are stored"

The message "0 of 0 mails are stored" only occurs if the mail was already stored to DocuWare with a Connect to 
Outlook configuration which should delete the mail after storing, but the deletion of the mail failed. It this case a delete flag is set for this mail, which leads to the behavior that at the next storing process the mail will only deleted, but not stored for a second time.

In the Connect to Outlook Log you will find the following entry:

"Deleting Flagged Outlook Item"
Additional information:
Message Text : Deleting Flagged Outlook Item