Hello. Thank you for coming to JustAnswer.
Sorry for the delay and thank you for your patience. My name is Michael. I will be helping you with your question today.
Please let me know if there as any additional information that you think might be pertinent to your question. If I don't hear back from you, I'll provide the best answer I can based on the information you've given so far. You will still be able to reply with additional information or questions at any point during our conversation, and I'll revise the my answer accordingly.
You can always sync your Mac calendar to Gmail using the iCal format. I'm Gmail there is link you can use from the settings that you can put in your calendar to sync to it.
In outlook, you can make the Gmail calendar your default calendar. This would make. It your main calendar there, and then by using the iCal link, it would sync to your Mac devices.
The best way to set up the email is using IMAP. Note that email and calendar are not really related, since the email protocol doesn't handle the calendar.