Error [0]: Failed to connect with fsockopen host=ssl://smtp.office365.com port=587
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Give coffee first 
Have a look here : Setup EMails - Dolibarr ERP CRM Wiki
Good morning,
how did you configure mail o365, do you use the oauth2, since they disabled the old smtp early this year?
Jason
Hello,
just read the wiki : Setup EMails - Dolibarr ERP CRM Wiki
I am having difficulty figuring out how to make a new post on this forum but I am also experiencing issues with OAUTH2 with SMTP of O365 in my 19 Dolibarr instance, I can provide screenshots of my config as well as any necessary logs. I was able to get a token and everything but email still fails.
