Mailbox recovery

Symptoms

Backup and/or recovery of an Exchange mailbox fails with the message similar to the following:

Cannot open public folder or mailbox <user@domain.com>

Access is denied.

Failed to connect to Microsoft Exchange API using url '{0}'

uri: https://%my_public_domain_address%/EWS/Exchange.asmx

Where %my_public_domain_address% is your public mail server address.