MailStore – “EWS Error Code: ErrorVirusDetected” when archive from Microsoft 365 mailboxes
Summary
In MailStore, if you’re archiving from Microsoft 365 mailboxes, the following error occurs: “EWS Error Code: ErrorVirusDetected”
This issue was reported in (but may not be limited to):
- MailStore Server
- MailStore SPE
Cause
An Exchange integrated antivirus software prevents the delivery of the requested message to MailStore. The email could not be archived successfully. Due to false-positives of antivirus programs, it is advised to manually review the corresponding message before deleting it from the mailbox.
Resolution
Third-Party Issue
This is a third-party issue and cannot be resolved by MailStore.
Due to that error, the archiving profile itself terminates with a non-successful status code.
This behavior can be changed since MailStore Server 8.1 by modifying the global property public.arcclient.skipVirusDetected by executing the following command in MailStore’s Management Shell:
store-setprop --name="public.arcclient.skipVirusDetected" --value="true"Please note: Independent of this global property, MailStore Server is neither able to archive messages where the above error occurred nor delete them from the Exchange server.