troubleshooting Question

DNS question: MX record priorities don't seem to be honored?

Avatar of billmercer
billmercer asked on
NetworkingDNS
11 Comments1 Solution2425 ViewsLast Modified:
My understanding of this is that a mail sender should first try to use the server with the highest priority, and only go on to the next if the first one fails.
But looking at our incoming mail, it looks like some senders are just picking a server randomly and disregarding the priority value.
I know that spammers often choose lower priority records on purpose, but this is happening with messages from legitimate providers.
Is this normal?

 
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