The websites have personalized contact or support emails. such as [email protected] and these websites mostly use email providers to send and receive emails. Website email providers are often not visible with common methods. since personalized emails do not end with @gmail.com or @tutanota.me. with OSINT methods if the name of the service provider can be collected.
With the DNS Lookup tool you can see the domain’s email provider in the MX records. There you will find the name of the email provider. There is also another tool called mxtoolbox that can do this job. It is easy to use and in addition to showing the domain, it will show the IP address of the email provider’s domain.
That’s how easy it is to find the email provider for any domain. There are also other ways to find the email provider of any domain. In 2023 this technique was used to suspend the email service of a pedophile forum, this forum was “CumOnPrintedPics” / “TributePrintedPics”.