Email security
How do I add multiple SPF records?
Short answer: You can't — a domain must have exactly one SPF record, so combine all your services into a single v=spf1 line.
The full answer
Two separate SPF records make SPF fail for every email. Instead, take the include: parts from each service and put them in one record.
For example, if Google Workspace gives you include:_spf.google.com and your newsletter tool gives you include:sendgrid.net, use both in one line.
Keep an eye on the 10-lookup limit: each include uses at least one lookup.
v=spf1 include:_spf.google.com include:sendgrid.net -all
Want step-by-step help? Read What Is SPF? How to Set Up an SPF Record.