Not the good error. When you connect to office365 with some bad value : you have an authentification issue, not a connect issue.
Here : surely something with your hoster : can conect to external web address.
Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member,
professional service on demand
,
plugin development
. I don't answer to private message.
