100% Uptime - How?

I am not looking for load balancing but I do want redundancy.

As I understand DNS Server, typically you have at least two but they both point to the same ip address, however, my question is if I setup 3 DNS Servers, pointing to the associated ip address (Different IP Addresses), each one with a different provider, example,

DNS 1 - Provider A
DNS 2 - Provider B
DNS 3 - Provider C

and DNS 1 goes down, will all traffic be diverted to DNS 2, hence, provider 2 and web site 2?

If so, how is the email handled?

If not, how can I make this work?

Also, would it be possible to just setup all three DNS providers to point to a fourth email only provider? Any redundancy options with email?

Thank you.

 

 

 

 

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