How to configure WordPress email settings using SendGrid with the free WP Mail SMTP plugin. Including steps for updating your DNS SPF record and configuring DKIM for email authentication so your WordPress emails don't go into spam.

Step by step guide for admins on how to set up domain authentication in SendGrid using DKIM and SPF

How to create an API key with the correct permissions for sending SMTP email in SendGrid, with an example of the settings to send mail using the API key