Which calendar providers does Holly support? Customer Success December 11, 2017 18:09 Updated Follow For the moment, Holly is compatible with these calendar providers: Google Outlook Acuity Hotmail drchrono Related articles Why do you need access to my calendar and contacts information? How can Holly use a specific contact information (preferences) for an office? How do I tell Holly if I'm going to be out of the office for some days? I don't have an email for a patient, what can I do? I have 2 or more patients with the same phone Comments 0 comments Article is closed for comments.