I do have a significant problem with a MS Outlook 2010 on one of my customers.
Every so often he gets plenty, between 30 and 50, of his own Outlook contacts (.vcf files) in his deleted Folder in Outlook, just like this. No errors are reported in Outlook or Exchange logs.
The Outlook client is connected to Exchange Server in the LAN (all of it 2010). The user syncs his Exchange MB with iPhone and iPad. No iTunes or something like that.
Thx for help in advance.