I want to use a mass mailing service, e.g. sendgrid, mailgun, etc. And so I must update my zone file to include the correct SPF records.
Suppose my domain is
My DNS provider automatically set up SPF like this:
type: TXT key: example.com value: v=spf1 include:spf.mydnsprovider.com ~all
Now Sendgrid tells me I need to add this:
type: TXT key: foo123.example.com value: v=spf1 include:sendgrid.net ~all
I've read that I can combine multiple SPF entries in a single TXT record like this:
v=spf1 include:spf.mydnsprovider.com include:sendgrid.net ~all
However Sendgrid specifies that I create a separate TXT record, which applies to a subdomain (
I'm unsure what to do. If I do what they say and add a separate record, what are the ramifications? Should I merge them, or do what Sendgrid recommends?