Do I Need A Certificate For Outlook On Mac

Basically your mail server name needs to match the name on the certificate or Outlook will complain. The above process changes the mail server name to the name on the certificate and the hosts file will ensure that mail traffic to this server name will be correctly directed to your mail server.

A very basic setup of Office 365 usually doesn’t require certificates since all of the servers and externally facing components are on Microsoft’s end. However, there are two major cases where a certificate for Office 365 is going to be required: ADFS and Office 365 Hybrid Exchange Configuration. Since ADFS is a useful and commonly used technology I will focus on that scenario for now. If you are wondering what ADFS 2.0 is, it stands for Active Directory Federation Services.

For more information on it, see our prior articles: So for ADFS 2.0 with Office 365, you need a certificate that will sit on your externally facing web server and authenticate with Office 365 and any incoming devices (Outlook Clients, Phones, Tablets, web browsers for Outlook Web Access, etc). When buying a certificate, we generally recommend getting them from (Click on All Products >. Despite the fact that I have never really cared for their commercials, their pricing is good, their site is easy to use, and their certificates seem to work reliably with just about everything out there (since they are a larger provider) so they are fully compatible with Microsoft stuff like Office 365.

We’ve been using them for a few years now with no issues. Choosing a Type of Certificate for Office 365 There are two main choices when purchasing a certificate for Office 365 – standard or wildcard. Standard certificates cover one specific host name in a domain, whereas wildcard certificates can cover all hostnames in a single domain.

For example, if you wanted a certificate for adfs.testdomain.com, a standard certificate would read adfs.testdomain.com where as a wildcard certificate would read *.testdomain.com. In a second example, if you wanted to then use a certificate for mail.testdomain.com, a standard certificate would read mail.testdomain.com and a wildcard certificate would still be the same *.testdomain.com. So clearly using a wildcard certificate is much more convenient than a normal certificate, with the only downside being that they cost a bit more. As it stands right now on, a normal SSL certificate runs about $70 a year (less per year if you buy it for 2+ years) and a wildcard certificate costs $200 a year (also less per year if you buys it for 2+ years). In my personal opinion, wildcard certificates are the way to go.

If you only need one or two certificates and you are positive you will never need to change their hostname or add any others in the lifetime of the certificate then you could save a few tens of dollars a year by going with standard certificates. But that being said, I still much prefer the wildcard certificate for its flexibility and the guaranteed set cost no matter how many certificates you need in the future (on that domain). It also gives you the flexibility to experiment and use it in test runs without having to buy a new certificate or use your original hostname.

Generating a Certificate for Office 365 Generating a certificate for Office 365 can be a little tricky the first time you do it, but it’s a pretty straightforward procedure that shouldn’t give you too many problems as long as you follow the directions. 1) Start by going online to. You can find certificates under All Products –> SSL and Security –> SSL Certificates. On the right side of the page, select the type of certificate you want. As I mentioned before, I recommend a wildcard certificate for Office 365 (listed as “Single Domains with Unlimited Sub Domains (Wildcard)”), but the choice is up to you. 2) Add the certificate to your cart and buy it, then navigate to Godaddy’s certificates page.