Mail Spooling (Backup Mail)
Posted by Ryan M. on 03 August 2016 12:47 PM
Our standard backup mail server allows users to specify easyDNS as their backup in case their primary email server goes down. When mail is sent out, the sending MTA (Mail Transport Agent) checks the DNS records to see what servers are responsible for the mail for that domain. The responses come back ranked by lowest preference number to highest. If the sending server can't reach the first, it will send to the next, which, in this case, is easyDNS.
Simply put, in a situation where your primary server does go down our server will spool all your messages for up to 5 days or until your primary is back up again. If you primary server is still down after 5 days, we will send the messages back to the original sender.
NOTE: Please note that our email spooling service is only available for certain service levels. Please go HERE to see what each of our service levels include.
To use our mail spooling feature please do the following:
1. Log into your easyDNS account
3. Click on the MODULAR EDITOR tab
5. Put in your host under MAIL FOR ZONE and LOCAL under the corresponding MAIL SERVER box for said host
NOTE: Make sure to assign a HIGHER preference to the easyDNS server than what is specified for your primary mail server.
7. Click NEXT
8. Confirm your changes
Again if you primary server goes down, our mail servers will accept the mail for your domain and begin contacting your primary server. When your primary server comes back up, our servers will begin dequeueing the stored mail to your primary. However, please note that our spooling feature will attempt to reach your primary mail server for up to 5 days after which we will bounce the messages back to the sender notifying them the message failed to deliver.