When an email is sent to a recipient the email server looks to see which server handles mail for the domain using the DNS MX records. MX records specify which server(s) will receive mail for a given domain. Each MX record is given a priority (the MX level), the lowest number being the primary mail server. The primary mail server is responsible for delivering the mail to the appropriate user mailbox.

Mail delivery is first attempted to the primary mail server (indicated by the MX record with the lowest MX priority number). If that server is not reachable, then delivery is attempted to the mail server with the second lowest MX priority number. If the second lowest mail server in priority is unreachable, then the mail will be delivered to the server with the third lowest MX priority, etc.

How Backup Email works:

Axcelx's back-up email service provides access to three (3) additional enterprise email server clusters for complete email redundancy.

If your mail server cannot be reached, then your email is sent to Axcelx ’s Enterprise Back-up email servers. Once it reaches our servers, it remains in queue and we continually check to see if your primary server is back online. When the monitor detects that your primary server is back online, the queued mail is instantly delivered to your mail server. We will keep attempting to deliver mail to your server until it responds.

Axcelx will quote each business independantly. Please email sales