How do multiple MX servers consolidate messages for delivery to a mail client

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I am currently looking into the use of MX records to allow load balancing and HA for a mailing solution. While I understand the configuration of DNS and the frontend, what I have not been able to understand or find information on, is the "Join" function at the backend. So I have 3 email servers listed in my DNS server and I have an outlook client sat on my desktop - what component ensures that emails recieved at each of the email servers is delivered to my outlook client?

What I have tried:

(In my test environment I am modeling this with hmail and outlook and my DNS server is a Windows server)

Thank you in anticipation...

Posted 14-Mar-19 5:50am

Scyldshefing

Updated 14-Mar-19 8:36am

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F-ES Sitecore 14-Mar-19 13:33pm

Not sure this is possible, mail isn't something you load-balance. Multiple MX records are so that you have a back-up if the primary fails. If you have multiple MX records of the same priority then I think you'll simply need to configure your client to check multiple servers for mail. Failing that, choose one as the main server and have something that forwards mails from the other servers to that server (not sure if that's possible, but if it is someone probably has a tool for it).

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MadMyche · Answer 1 · 2019-03-14T08:36:00

Solution 1

Not my normal realm, but you may try reading this article and firing up ole Google if you need more information
How to Load Balance Incoming Email Using DNS MX Records – GFI Support[^]

Posted 14-Mar-19 8:36am

MadMyche