QAID # 19156 Published
Question / Problem:
What can cause the following error when testing the mailbox connection with EWS protocol to a Shared Mailbox using a Service Account?
Connection to EWS mailbox https://<Domain>/EWS/Exchange.asmx cannot be established.
Error message:The SMTP address has no mailbox associated with it.
How can I resolve this issue?
Answer / Solution:
This error can be caused by not specifying the full domain in the User Name.
For Example, the User Name is specified as:
To resolve this issue, specify the full domain in the User Name.
For Example, the User Name should be specified in one of the formats below:
(in this case,
DOMAINis ignored and
(will work if
DOMAIN == domain.com, which is not always the case)