Output
For a given mail server address:

• records matching

• Domain name
• Timestamp of the first time the record was seen
• Timestamp of the last update for this record

How to use
Check our Reverse MX API docs for more information.

Benefits

• The intelligence behind the API covers most active domains and their corresponding MX records
• Easily integrable and RESTful API, compatible with all major programming languages
• The query results are returned in XML & JSON with parsed fields and raw texts

Use cases

• Make sure that sites you share your mail server with are not known spammers or phishers
• Research potentially malicious mail servers and the domain infrastructure behind them
• Study the domain infrastructure of your sites to optimize website performance
• Learn more about the domain infrastructure of your competitors and other parties of interest
• Establish a connection between seemingly unrelated domains
• Uncover connected domains that may otherwise seem unrelated.
• Analyze mailing functions of any organization to gather clues about its structure and security vulnerabilities.
• Do your research on potentially malicious mail servers.