Exchange Integration now supports the Exchange Web Services (EWS) protocol for connecting to Exchange Online. With the deprecation of Basic Authentication in Exchange Online at the end of October 2020, using EWS will allow Exchange Integration to continue to work with Exchange Online. You will need to configure a new Exchange Integration source, and new actions configured using that source will use EWS. In addition to ensuring that Exchange Integration will continue to connect to Exchange Online after October 2020, the switch to EWS simplifies the Exchange Integration configuration by eliminating the need to use a service account and the accompanying requirement to update the service account's permissions after creating new users with mailboxes. Ensure outbound connections to port 443 are open and use the MAS hostname Note that you will no longer need a service account to set up an Exchange Online source. Click Start New Action. In the Select Action page, click Email Import. If you are not already logged in, a new tab or pop-up window prompts you to enter your Office 365 administrator account login information from which Exchange Integration will process mail. In the Configure Action page, select All Users from the drop-down menu, and specify the desired Date and Schedule settings. Click Continue.Requirements
mas.barracudanetworks.com
to allow the Barracuda Message Archiver outbound connection to the Barracuda Cloud Archiving Service (BCAS). This is required to authorize a new source and to run each action.
Add a New Exchange Online Source
How to Import Historical Office 365 Data Using EWS
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