Access office 365 group using ews api

Question

I am trying to access office 365 groups using ews java api using impersonation. I am getting error:

 The SMTP address has no mailbox associated with it.

Code:

ExchangeCredentials credentials = new WebCredentials("[email protected]", "passwordxxx");
service.setCredentials(credentials);
service.setImpersonatedUserId(
            new ImpersonatedUserId(ConnectingIdType.SmtpAddress, "[email protected]"));
FolderView folderView = new FolderView(50);
FindFoldersResults findFolderResults = service.findFolders(WellKnownFolderName.MsgFolderRoot, folderView);

The aim is to get channel messages of the team associated with this group. According to this: link

The channel messages are stored in group's mailbox's Conversation History/Team Chat folder

Answer 1

If you want to access the messages in a Teams channel. You could use List Channel messages graph API