VDI Protocols comparison: Microsoft vs. VMware vs. Citrix https://searchvirtualdesktop.techtarget.com/feature/Comparing-remote-display-protocols-RemoteFX-vs-HDX-vs-PCoIP
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Digital ID
Digital ID If you want to send your email with Digital ID and provide encryption for the email content. You need to purchase the digital ID from below site: Symantec Digital ID Purchase It will cost $25 per year https://www.ablebits.com/office-addins-blog/2014/04/11/email-encryption-outlook/
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Office 365 Subscription
Microsoft Office 365 Office 365 Business Essentials $5 (Mail box only) Office 365 Business $8.25 (Office desktop software only) Office 365 Business Premium $12.5 (Mail box and Office desktop software) https://products.office.com/en-us/business/compare-office-365-for-business-plans
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