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SpektraFlag for Switzerland

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Meeting Problems after migrating to office-365

We have a Client, using SBS 2011 and Exchange 2010.

After migrating to office-365 and connecting the AD via Azure AD Connect to office365, we have the following Problem.

We migrated all Mailbox-Data using a Cutover Migration Batch.

These Users rely heavily on Outlook Calendar information and often schedule a outlook meeting and invite external and internal e-mail adresses to those appointments.

When we try to change an Appointment Info and update all Attendants, the user gets an error message:

Nachricht hat einige oder alle Empfänger nicht erreicht.
 
      Betreff:  MSH-Austausch 3
      Gesendet am:      03.06.2019 10:43
 
Folgende(r) Empfänger kann/können nicht erreicht werden:
 
      USERNAME am 03.06.2019 10:43
            Diese Nachricht konnte nicht gesendet werden. Sie besitzen nicht die Berechtigung, die Nachricht im Auftrag des angegebenen Benutzers zu senden.
 
__________________________________________________
 
Diagnoseinformationen für Administratoren:
__________________________________________________
 
Der Fehler lautet [0x80070005-0x000004dc-0x00000524].
 
Exchange-Antwortkopfzeilen:
        request-id: 940664f6-8f25-4bd1-8b29-5410387c81c7
        X-ServerApplication: Exchange/15.20.1922.000
        X-FEServer: VI1P194CA0034
        X-BEServer: AM0PR03MB5779
        X-CalculatedBETarget: AM0PR03MB5779.eurprd03.prod.outlook.com
        X-RequestId: {359BBF72-08A1-4777-9B15-1EBD2565ED26}:2291
        X-ClientInfo: {2E0BBBA6-6304-4045-9B7B-DB7C4943047C}:505840037
        X-ElapsedTime: 227
        X-BackEndHttpStatus: 200
        X-ResponseCode: 0
        X-DiagInfo: AM0PR03MB5779
        X-RequestType: Execute
__________________________________________________
 
ROPs-Zusammenfassung:
 
        0: ropSetProps (10) verarbeitet (1) abgeschlossen (0)
                ROP-Ergebnis: 0
                Antwortcodes: 0
        1: ropSetProps (10) verarbeitet (1) abgeschlossen (0)
                ROP-Ergebnis: 0
                Antwortcodes: 0
        2: ropFlushRecipients (14) verarbeitet (1) abgeschlossen (0)
                ROP-Ergebnis: 0
                Antwortcodes: 0
        3: ropSetProps (10) verarbeitet (1) abgeschlossen (0)
                ROP-Ergebnis: 0
                Antwortcodes: 0
        4: ropTransportSend (74) verarbeitet (1) abgeschlossen (0)
                ROP-Ergebnis: 0
                Antwortcodes: 1244
__________________________________________________
 
 
Transport-Send-Fehler: Fehleraufzählung (25), HResult (0x00000000), EC (1244).
Transport-Send-Fehler: Fehleraufzählung (22), HResult (0x00000000), EC (1244).
Submit-Message-Fehler: Nachrichten-ID (24), Fehleraufzählung (13), HResult (0x80070005), EC (1244).


Sorry for the German Error Message...

Is this normal behaviour?

What can we do to test further?

We already tried giving "SendAs" Permissions to solve this Problem, but I think thats unrelated.

Maybe you can suggest some further analysis methods
ASKER CERTIFIED SOLUTION
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Adam Brown
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ASKER

You are the man, It was exactly the right "hint" I needed to get more knowledge of X500 and LegacyExchangeDNs.

This will help me and my customers in the future a lot.

Thank you