[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 1892
  • Last Modified:

Office 365 -- Wildcard certificate

I am running  Outlook 2003
Windows server 2003 Enterprise Edition

We are doing a cut over to office 365

I was told that we must have a non self signed certificate to migrate the e mail accounts to office 365

We did buy a Wild card certificate    Will  that work ?

Now we do have a self signed certificate on the server at this point

If i replace that certificate with a wild card cert will that cause issue with the e mail that is running on the server now ?
0
Aaron Thorn
Asked:
Aaron Thorn
  • 4
  • 4
1 Solution
 
Berkson WeinTech FreelancerCommented:
A wildcard certificate will work with Exchange 2003.  Assuming that Office365 is connecting to your existing exchange box, it should be happy with the wildcard cert, though testing is probably the best way to find out....

0
 
Aaron ThornAuthor Commented:
The way i want to do it is to make another name

What we have now is outlook.mydomain.com
I want to create outlook1.mydomain.com and then use the wild card cert to validate

But it will not let me add a cert   See picture  Picture
0
 
Berkson WeinTech FreelancerCommented:
You'd need to replace the current (self signed) certificate with the wildcard cert.  I assume you generated the csr and private key using IIS originally?  If so, you'll need to export the wildcard cert and it's key from the installation and then import it (replace current cert) from the installation taht you have pictured above.
0
NFR key for Veeam Agent for Linux

Veeam is happy to provide a free NFR license for one year.  It allows for the non‑production use and valid for five workstations and two servers. Veeam Agent for Linux is a simple backup tool for your Linux installations, both on‑premises and in the public cloud.

 
Berkson WeinTech FreelancerCommented:
out of curiosisty, is there a particular reason that you're creating the new outlook1 subdomain?
0
 
Aaron ThornAuthor Commented:
Because we are thinking if we replace the self signed cert it will cause issues for cell phone users or other users
0
 
Berkson WeinTech FreelancerCommented:
It shouldn't have to replace it.  As long as the mobile users accept the certifricate authority, you're good.  With the self signed cert, you had to jump through hoops to allow that (Fake) CA to be accepted. But the real authorities are built into the phones, so you'll be fine.
0
 
Aaron ThornAuthor Commented:
Ok i am doing  1
Then doing
 2
The common name must contain only a single wildcard ("*").
0
 
Aaron ThornAuthor Commented:
Do i have to remove the certificate that i am using   Because all it gives me is Renew Remove OR replace
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

  • 4
  • 4
Tackle projects and never again get stuck behind a technical roadblock.
Join Now