Every now and then the autocomplete list is lost, or some entries of this list get lost. Also sometimes this list gets filled with false random stuff. Contacts from GAB like firstname.lastname@example.org are shown in the autocomplete like meyer.müller@company.com. Thing is, they were never entered like that, nor was a mail send to this false address. Sometimes i’ve seen this with a fresh installation.
Did you observer this behaviour for the users using Outlook over ActiveSync with KOE? Is there a contact like meyer.müller@company.com in their contacts’ folder or in some public contacts folder?
happens only with Outlook over ActiveSync and KOE. For Example: There is a contact in AD like Firstname: Meyer Lastname: Müller Mailadress: email@example.com nothing in Outlook/Kopano Contacts. So with a fresh Outlook installation the Autocomplete should be empty or at least show firstname.lastname@example.org and not with Umlauts
we also have very strange behavior with the “Vorgeschlagene Kontakte” and this was even before upgrading to 2.6
suddenly very old Mailadresses were suggested and newly added were gone.
(Outlook 2016 (volume) KOE 2.1 (last stable))
Sometimes very old adresses are restored und suggested bei the autocomplete function of Outlook. Even if you delete the Autocomplete list with Outlook internal utilities.
So for my example. Maybe someone entered meyer.müller@company.com some time ago, deleted it later and somehow this entrie is restored and suggested again.
Something strange is happening within the Outlook Autocomplete / Suggested Contacts List.