We have an SBS2011 Server and all of the workstations are getting the expired certificate warning when they first open up Outlook. The users can click Yes to the warning and then carry on as normal but we want to resolve it by renewing the SSL Cert.
Can anyone point me in the right direction of where to get a reliable cert from and a possible guide on how to install it on Exchange 2010?
We are in the UK if that makes a difference?
Thanks for your time,