How does the MX record preference work?
Lets say, for example, we have 3 MX record for domain @example.com. Assume that the hostnames below are mail server directly.
Pref Hostname IP Address
5 mail-1.example.com 100.100.100.10
10 mail-2.example.com 100.100.100.20
15 mail-3.example.com 100.100.100.30
If a sender wants to send email to email@example.com and the mail-1.example.com doesn't have account firstname.lastname@example.org, but the mail-2.example.com have the account for email@example.com, will the email sending fail? Or will the message send to the mail-2.example.com after mail-1.example.com told that it doesn't have for such user?
Solved! Go to Solution.
As per MX records concern Low Preference is preffered. as per your configuration if pref 5 mail server not available it will try preference 10 MX records.
If you like to Load-Balance with MX records you need to try all same preference. (5 or 10 )
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