Users are uptdated over and over again (EXCHANGE)


  • Used Zammad version: 5.4
  • Used Zammad installation type: PKG, Ubuntu
  • Operating system: Ubuntu
  • Browser + version: Chrome

Expected behavior:

  • A shared OFFICE365-Mailbox hosts the contact list with our clients. When changes are made, those should be updatet in ZAMMAD. Clients without changes should not be updatet.

Actual behavior:

  • Most Clients with changes are updatet. Many Clients without changes are updatet too. Login-IDs are updated and reverted in the same step in a manner i do not understand.

Steps to reproduce the behavior:

  • Each time the Exchange synchronisation starts.

More Info:

That looks odd.
Do you possibly have more than one contact with the same email address?
That would explain the behavior… Especially might happen if you have several addressbooks.