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If my Domain is accidentally canceled (but restored within 5 hours) will i lose all emails?

So, I have a situation with a client for which I am not 100% sure of the answer and am seeking some advise. So here goes:

 

I understand the DNS server and the MX server run on two separate servers. Now, if the DNS (domain) server is accidentally cancelled - but restored within 5 hours - would the emails be lost forever that attempted to be sent during that time to the @mycompany.com?

 

Do they stay in the MX server until the domain is re-established or until the set attempts to deliver have been met and the kick back email is sent to the original recipient?

1 ACCEPTED SOLUTION
Super User III

The DNS server needs to be configured to send email to the MX servers to be stored, they aren't stored enroute.  These changes don't happen instantly so it's hard to estimate downtime.

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1 REPLY 1
Super User III

The DNS server needs to be configured to send email to the MX servers to be stored, they aren't stored enroute.  These changes don't happen instantly so it's hard to estimate downtime.

View solution in original post