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Support Center » Knowledgebase » Email Services » MX Failover (Mail Bagging) related Services » Mail Bagging Shared » What is an MX record, and how does Webservio's Mail Bagging solution work?
 What is an MX record, and how does Webservio's Mail Bagging solution work?
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An MX (email exchange) record is an instruction within a DNS (domain name system) that routes the email for the domain to the correct mail server. Without a valid mail exchange record, one cannot send and receive emails. When a message is sent to an email address, that piece of mail is routed through to the mail server whose MX record is listed in the DNS. If your mail server goes down, then the mail is routed to the next MX record listed in the DNS. If no additional MX records are specified, then the message is returned to the sender as undeliverable. When you signup for Webservio's Mail Bagging solution, we will provide you with a backup email exchange record to be added to your DNS. In the event that your mail server fails, your mail is routed to the backup MX record of Webservio's mail server. Our mail server bags the emails sent to your server until it comes back online. Once your email server is back online, Webservio relays all the bagged emails to your MX record thereby ensuring that no messages are lost while your server is inactive.


Article Details
Article ID: 104
Created On: 18 Sep 2012 1:27 PM

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