Hi, I have 7 AD Sites with Exchange 2003 and Exchange 2007 Servers. Newly, we are adding Exchange 2007 SP3 CCR pairs and CAS/HUB NLB pairs at each site. That means lots of Exchange CAS servers. I want to know the certificate requirement. Currently we have a SAN cert with adhoc names. Please suggest the exact cert requirements with inclusion of hostnames, FQDNs etc. Do I really need hostnames and FQDNs of all Exchange servers on the certificate? How about SAN certificate or wild card certificate - which one to go for and why? Can I go for a single SAN certificate for all 7 locations or 7 SAN certificate for separate locations? which one to go for and why? All other caveats around it? fast response will be highly apprreciated. Regards, Harish

Hi, Please assist. Changed the relevant content in this unique thread. Regards, HarishHarry