Set Up SPF for SendGrid

SendGrid uses an include mechanism during the set-up process. If you do not have an SPF record for your domain, you must create a TXT record with the following value:

v=spf1mx include:sendgrid.net -all

If you already have an SPF record for your domain, simply add the SendGrid include mechanism lookup into your existing record. For example:

v=spf1 include:_spf.google.com include:spf.protection.outlook.com include:sendgrid.net -all