How can I configure my DNS for better email deliverability?
Having a valid SPF record is a critical aspect of ensuring the proper deliverability of your emails.
This online tool let you see if your domain does not provide a valid SPF record.
See Google’s explanation of SPF records. Basically, your root domain’s DNS must have a TXT record similar to this:
v=spf1 include:_spf.google.com ~all
When not using Gmail, the
_spf.google.com part would be different based on your email server.
Your new/updated SPF record can take up to 48 hours to go into effect, though it usually happens faster.