Hey there, I let others chime in here as well. I'm based in Germany but most should be using Gmail/Outlook (2/3) and some other third party providers (remaining 1/3).
Something I found in Smartlead's Slack:
"Domain matching for email providers works by examining the MX (Mail Exchanger) records of the domain. Here's how it's typically done:
1. The system extracts the domain part of the email address (e.g., smartlead.ai from user@smartlead.ai).
2. It then queries the DNS (Domain Name System) for the MX records of that domain.
3. The MX records indicate which mail servers are responsible for handling email for that domain.
4. Based on the MX records, the system can determine the email service provider (ESP).
In Smartlead, this process is implemented in a function called fetchESPTypeFromEmail. This function determines the ESP type based on the domain's MX records. For SMTP servers, there's a similar function called fetchESPType that identifies the ESP based on the SMTP host information."
You can also detect the mx records in Clay using the HTTP integration. Then you could match them yourselves. Here a short video going over an example to find Gsuite records: https://www.loom.com/share/0908377cb92347dc99eabee2368334cf
If there's anything else I can assist you with, please let me know! 😊
Have a great Wednesday,
Daniel
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