How MX Record Preference works

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How does the MX record preference work?

Lets say, for example, it has 3 MX record for domain Assume that the hostnames below are mail server directly.

Pref Hostname IP Address




If a sender wants to send email to [email protected] and the doesn't have account [email protected], but the have the account for [email protected], will the email sending fail? Or will the message send to the after told that it doesn't have for such user?

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