As I developed the documentation for the Microsoft Exchange Server 2007 Domain Security feature set, I used the self-signed certificates that are generated by the New-ExchangeCertificate cmdl...
Updated Jul 01, 2019
Version 2.0
Blog Post
7 MIN READ
Exchange 2007 lessons learned - generating a certificate with a 3rd party CA
Hey Vlad,
"More popular CA's"?
Do you buy your certs based on what parties the CA gets invited to, or whether they can do the job at hand? :-)
You can check out for yourself which CA was more popular for the official Exchange2007 demo site:
https://mail.exchange2007demo.com/
Cheers,
Andrew (http://www.entrust.net employee with tongue firmly in cheek! )