Best Configuration (If Possible) to Host Few Mailboxes from Multiple Domains in Home Lab
Hey Guys -
My wife and I own a few domains for which we have 2-3 mailboxes each. Currently, the mailboxes are being hosted via GoDaddy's Office365 or Workspace Email (POP/IMAP). Being an SCCM admin, I've got a decent home lab which is mostly hosted on an ESXi 6.5 host that already has a domain controller and such. In an attempt to save about $75 a month, I am considering moving the hosting of at least one of the domains from GoDaddy to my lab.
The current plan is 3 domains with 2-3 mailboxes each. I'd only need one to have activesync-type hosting while others can be POP/IMAP.
I build & administer Windows AD / servers throughout the day but do have Linux experience, too. Below are the questions I have overall. Any assistance or opinions would be great!
1. I own a license for Exchange, but thought there may be a similar open source software for Linux that still provided ActiveSync for at least one of the domains. What would you think be the best solution / software (even if it's Exchange) for what I'm wanting to do?
2. My current lab setup only has a single IP. Would hosting mailboxes for ~3 domains be supported natively or without a tremendous amount of work?
3. Will I have to purchase any 3rd party certs or anything else per domain in order for them to work with the suggested solution or will self-signed be good enough? Don't need anything fancy even though would like basic activesync / calendar features for at least one domain's mailboxes. I currently own one 3rd party cert for use with a few things in my lab, but I don't even use email with it's domain
4. If support for ActiveSync changes suggestions, should I save myself a lot of work and keep the ActiveSync domain mailboxes hosted online and just attempt to host the POP/ IMAP domains? If so, would you suggest the same or different setup?
Depending on answers to the above, any links / guides you could suggest to assist with configuration would be great!
Think that's about it - Thanks, Guys!
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