How to calculate an azure VM pricing with Exchange Server 2019?
Here is the hardware requirements for Exchange 2019, you could use those information to create/buy a suitable virtual machine based on your needs. About Memory, 8G could let Mailbox server running, but to ensure that the server runs smoothly, you need to allocate 128G of memory for it as suggested in that article.
If you want to deploy a complex environment, those two articles could help you calculate the hardware requirements for your VM:
- https://techcommunity.microsoft.com/t5/exchange-team-blog/announcing-the-exchange-server-2019-sizing-calculator/ba-p/644180
- https://www.microsoft.com/en-us/download/details.aspx?id=102123
do I need an extra license for Exchange Server 2019?
Yes, you need to buy license for Exchange 2019. The Azure VM is just a VM deployed in the cloud, it doesn't effect the using of Exchange 2019. Deploy Exchange in Azure VM is same to install it on your local AD. You need to buy license for your Exchange server.
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