I'm considering moving to a VPS for my web hosting needs (my own site and a few customers; nothing major - a few hundred visitors a day, and occasionally a few thousand).
Since I'm unhappy outsourcing my email to Google - and besides, their free service is no longer available to new domains and the paid one is unaffordable - I've been considering running my own mail server too. (Again nothing major, maybe 20 accounts across 5 domains and up to a hundred or so emails a day.)
So the obvious question I find myself facing is: are there any reasons not to use the same VPS for both?
- Are there any security downsides to this arrangement I should be aware of?
- Could this have a negative impact on reliability? The reliability of the mail server is more important, but of course the web server is important too.
- Are there any other issues I should be aware of, or reasons why I would need to do things differently from if I was running two different servers?