Solved

Office 365 migration but users getting expired cert message

Posted on 2013-06-01
7
1,490 Views
Last Modified: 2013-06-20
Hello,

   We recently converted from an in-house exchange to office 365 and now users are seeing a prompt when they open Outlook for an expired security certificate from out exchange server with GoDaddy. We have the server removed from the network and it's still prompting, Office 365 is functioning fine, but I cannot figure out how to correct the certificate prompt issue. Any help would be greatly appreciated!
0
Comment
Question by:Jharrisonsnbs
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
7 Comments
 
LVL 20

Expert Comment

by:woolnoir
ID: 39213808
are your outlook installations pointing at O365 CAS directly now ? check in the account prefs. DO you have any autodiscovery DNS records on your internal DNS which point at the old server ? is anything using the same IP as the old server on your network atm ?
0
 

Author Comment

by:Jharrisonsnbs
ID: 39216289
Woolnoir,

    Sorry, I'm not familiar with checking the CAS on their account prefs. Where would I go to verify that? I do see this autodiscover record in my DNS forward lookup zone. Should that CNAME record not be there now? No, nothing is using that same IP address atm.
autodiscover.PNG
0
 
LVL 41

Expert Comment

by:Vasil Michev (MVP)
ID: 39217153
Did you actually uninstall the Exchange server? Is the SCP object removed? SCP is the first thing Outlook clients will look for, then comes autodiscover. You can either perform a 'Test E-mail autoconfig' test from Outlook and see if any reference to the old Exchange server comes up, ro force Outlook to only look for specific location. For more info you can refer to this article:

http://support.microsoft.com/kb/2212902
0
Online Training Solution

Drastically shorten your training time with WalkMe's advanced online training solution that Guides your trainees to action. Forget about retraining and skyrocket knowledge retention rates.

 

Author Comment

by:Jharrisonsnbs
ID: 39222961
vasilcho,

No, exchange was never officially uninstalled, just stopped services.

I will go thru the article and see if I make any progress. Thank you!
0
 
LVL 40

Expert Comment

by:Adam Brown
ID: 39224184
You may also want to try recreating a user's Email profile. That's usually a good idea to do when you migrate if you haven't already.
0
 

Accepted Solution

by:
Jharrisonsnbs earned 0 total points
ID: 39250817
Finally got a solution. CA was installed on the DC for IIS and Email, which they weren't using. revoked the certs and uninstalled the services. The prompting stopped directly after that was removed.
0
 

Author Closing Comment

by:Jharrisonsnbs
ID: 39261881
I found a CA on the DC
0

Featured Post

NFR key for Veeam Backup for Microsoft Office 365

Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Large Outlook files lead to various unwanted errors and corruption issues. Furthermore, large outlook files can also make Outlook take longer to start-up, search, navigate, and shut-down. So, In this article, i will discuss a method to make your Out…
This lesson covers basic error handling code in Microsoft Excel using VBA. This is the first lesson in a 3-part series that uses code to loop through an Excel spreadsheet in VBA and then fix errors, taking advantage of error handling code. This l…
Migrating to Microsoft Office 365 is becoming increasingly popular for organizations both large and small. If you have made the leap to Microsoft’s cloud platform, you know that you will need to create a corporate email signature for your Office 365…

742 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question