If your mailbox is hosted on an Exchange server, there is no need to install anything.
Note: You can switch to the email service and keep your current email address as well if you do not want to switch to an address.
Various mail services also offer Exchange ActiveSync support which is capable of synchronizing E-mail, Calendar, Contacts and Tasks folders. Syncing your Calendar and Contacts via IMAP is not possible as the protocol doesn’t support it. If you are only interested in syncing your emails, configuring both Outlook and your smartphone and/or tablet with an IMAP account will do. It is also quite easy to switch to without losing your current address but still enable syncing. However, often mail providers offer both access via POP3 and IMAP. As a POP3 account can only download from the Inbox folder on the mail server, you won’t be actually synchronizing anything. You can configure your POP3 account to leave a copy on the server to receive new emails on multiple devices.
Over the air sync basically means that your mobile device is using its data plan or WiFi capabilities to directly synchronize itself with the mail server rather than via locally installed software and a USB cable. In an ever more connected world with Cloud based computing and people owning multiple mobile devices, the trend is to move away from syncing mobile devices with Outlook via local synchronization software and towards “over the air sync”. In some cases, you can use a local software application to sync your phone directly with your computer or from another phone. Nowadays, that depends more on the mail account type that you are using as most phones and mail apps only allow “over the air sync”. It's the re-adding I have problems with.How can I sync my Mail, Calendar, Contacts and Tasks in Outlook with my Smartphone and Tablet? I would be very happy if someone could give me an actual play-by-play, rather than the "and then re-add the account". used to work, but MS killed it this month. How on earth do I get our Outlook 2016 installations to sync with the storage of calendar? We are only interested in syncing our calendars (one for each of us, on different computers), and sync our contacts as well. Our Lumias syncs as they should, and we can see the various calendar items on, add items on the web calendar, and it will sync fine with the phone, add on the phone and it will sync fine with the web interface. My GF has the same problem, or rather, I have the same problem with my GF's outlook 2016. And when I try to do it manually, I come to a stop too. It asks to do it "automatically", but then it says something about the certificate being too old.
My microsoft account is (obviously not exactly that) and I can't for the life of me figure out how to set it up again in Outlook 2016 after having removed as Microsoft tells me to. This month, apparently as the server for the calendar/email in Outlook 2016 is dead and gone, and I can't figure out how to "re-add" the account. I must be thoroughly stupid, but I feel like I have tried everything.