have you considered using AWS SES for your email needs? It's a reliable service with detailed documentation to help you set up both incoming and outgoing mail. You can use this with Windows or Linux, and it's a cost-effective option for your AWS account. Good luck!
Indeed I have. In fact, one of my people set it up yesterday. We are in the "evaluation" period for account setup. After taking a quick look at documentation, I was not sure if I could point my desktop email client (Outlook) to it and use it that way.
If you want to stick with AWS, try WorkMail for incoming/outgoing and SES for outgoing to large group.
For incoming mail you would have to setup a lamda to process it. Outgoing is easy with SES.
Why not just forward your email with something like https://forwardemail.net or a lot of registrars offer email forwarding then use Amazon SES for outgoing email.
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