Objective
This guide cover authentication and sending emails from a subdomain, instead of a regular main domain.
Product
Twilio SendGrid
User Account Permission/Role(s) Required
Account Administrator or Teammate with Administrator privileges
Procedure
Sending from a subdomain is similar to sending from the root domain. In order to send from "@ANYdomain.com", you would need to first authenticate "ANYdomain.com" using the regular SendGrid's Domain Authentication process.
- Once "ANYdomain.com" is authenticated and valid in SendGrid, you can send mail from any_email@ANYdomain.com.
- To send from "@ANYsubdomain.ANYdomain.com" you would need to follow the same domain authentication process linked above, but instead of using the "ANYdomain", you would use the full "ANYsubdomain.ANYdomain".
- This will create records like "em####.ANYsubdomain.ANYdomain.com", which will need to be added to the DNS registrar for the root domain. This is the registrar for "ANYdomain.com" in this example.
- Once the subdomain records are added and the subdomain is valid in SendGrid, you will be able to send from any_email@ANYsubdomain.ANYdomain.com.
- With both the subdomain and domain authenticated, you would be able to send from both domains as needed. If you wish to send from a different subdomain, you will need to authenticate that one and the same way.