We have a couple of assistants, they are delegates of managers and receive their meeting invites, the managers do not receive invites at all. On some occasions when receiving invites the assistant receives two copies of the invite. I’ve checked over the invites, they are actually two copies, no second update after the first one and not the assistant also an invite.
Have checked over delegate settings, cleaned free busy, rebuilt OST, recreated profile, also done this on the manager computer also. I’ve checked AD for anything strange in mailbox security and native security, I’ve also ran the MFCMAPI tool to check for any stray deletes/rules. Have also checked all mailboxes for any rules.
This mostly happens when invites are sent to distribution lists, but not only then. Dist lists have been checked for duplicate entries or nestles groups that the managers might be on but all are clean.
Any advice would be very helpful.
Outlook 2010, Exchange 2010.