Oh, I'm using Outlook...
our ISP is using GMAIL servers, but nobody here is ready to dump Outlook. It seems to work fine in this manner. Multi-device syncing was standardized as well. Most of us in this non-profit association, seem pretty happy with it. The managers are cutting back personnel, and don't want to maintain Microsoft Exchange anymore. They want to offload it to Google. I am not privy to the costs on that side of the equation, but it make sense to me.
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