Default global address list exchange 2016 not updating
I might have a problem with my Offline Address Book in Outlook.For me, new colleagues are not showing up and the contact pictures aren’t displaying either.Another way to make sure that you get a fresh copy of the OAB is by renaming the oab-files to when Outlook is closed.They are stored in the following location: which itself holds subfolders with named after Account GUIDs.
Exchange 2013 has gone through an evolution in the way the Offline Address Book is generated and maintained.
Even tried restarting the Exchange Mailbox Assistant service without any luck.
Next we renamed the folder containing the OAB files (the folder with a name that looks like a GUID).
I verified the file location manually but also noticed the date discrepancy (the blue rectangles in the above image) which shows the date the attempted download was made (upper left) and the date of the files (lower right).
Because the files were not changed recently the error message was downloaded and the client could not download the files.