In recent years, the Exchange Product Team began recommending the "Preferred Architecture" for Exchange On-Premises. Inspired by what Microsoft found successful in their Office 365 datacenters, the Preferred Architecture (PA) was designed with several business requirements in mind.
M365 - Exchange Online Center
ENow Software's Microsoft Exchange Online blog built by Microsoft MVPs for IT/Sys Admins.
I work for Dell as a Principal Engineer in the Global Support & Deployment organization; serving as a senior point of escalation for Microsoft technologies to Dell's ProSupport & Consulting Services customers. My specialties are Exchange, Office 365, & Directory Services; while also being responsible for internal training development/delivery & managing various projects. I'm a Microsoft Certified Master in Exchange 2010 & a Microsoft Certified Solutions Master in Exchange 2013. I enjoy getting to work with a wide variety of customers, as it allows me to assist in resolving the various complexities & challenges they encounter. I try to use that experience to help others by blogging at Exchangemaster.wordpress.com with a few of my fellow MCM's at Dell. I also co-founded an Exchange Server community on Reddit (Reddit.com/r/ExchangeServer) where I answer questions on the product & help lead discussion around Exchange/Office 365. You'll also find me blogging about various other topics at ashdrewness.wordpress.com. I'm also the co-author of the Exchange Server Troubleshooting Companion (http://exchangeserverpro.com/ebooks/exchange-server-troubleshooting-companion/) I enjoy spending time with my lovely wife Lindsay, am a Texas Longhorns/Houston Texans fan, & try to sneak out onto a golf course every chance I get.