Find historical connected domains to a mail server (MX record).Enter mail server or domain name. Example: tcpiputils.com or alt1.aspmx.l.google.com
Find domains using a MX record (mail server) in the past. It shows a maximum of 2,000 previous connected domains. Just type a mail server or domain name and click the Go button.
Q: How many MX history records do you have?
A: On Augustus 2016 we had 300 million MX history records on file.
Q: How often do you resolve the MX records for a domain?
A: Our DNS crawlers try to resolve every domain name once per month.
Q: How many mail servers do you have?
A: We have 50+ million active mail servers and 30+ million inactive mail servers on file.
Q: How many domains do you have?
A: We have access to all gTLD (ex com, net, org) and nTLD (ex xyz, berlin, nyc) daily zone files. For ccTLD (ex de, fr, eu) our coverage is between 40% and 70% depending on the ccTLD.
Q: Is this tool available for all Top Level Domains?
A: Yes, the MX History tool returns all domains.
|Your public IP Address|
Information about your public IP Address like reverse dns, hosting info and whois data.
|my IP Address for Windows 8.1 & 10|
This app shows detailed information about your IP Address, your domain and your provider.