If your AD synchronization for a company doesn't work (and others do).
It's most likely due to the configuration of that single company.

  • If you check the logs for the RfAdReplication service (should be installed on same server as domainmaster)
    and find the following error occurring "ConnectToAd - A referral was returned from the server." It's probably the Domain Path on the company.
    Ensure that you have entered the path correctly according to the AD integration documentation

  • It can also be that you are missing a whitelabel/whitelisting of the emails domains,
    you should ensure that you have added all domains for the desired email addresses
    as shown in the AD integration documentation

AD Integration documentation