Batch MX Lookup Tool
Enter primary domain names into the MX Lookup Tool Below. For example: google.com.
If you wish to process list too large for the site or require further functionality above the website. Try our Desktop application more details
The MX records for a domain name specifies how email should be routed with the Simple Mail Transfer Protocol.
Another great site for MX Lookups and other DNS based tools is mxtoolbox.com check the out here as well as other useful links here