Creating SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mails) in your DNS settings is one of the most effective ways for your emails to fight identity deception/email spoofing that could potentially harm your domain. Authentication is also critical to email deliverability. This works by providing a trackable identifier that shows the recipient's internet service provider that it's coming from a legit sender, and it helps emails land on inbox.
PersistIQ does not provide SPF records as there are no PersistIQ mail servers. All messages are sent directly through your gmail account, which means you just need to make sure that your SPF records are set up for properly.
Setup SPF and DKIM for Google
Check your MX record - https://toolbox.googleapps.com/apps/checkmx/
SPF Setup - https://support.google.com/a/answer/33786?hl=en
DKIM Setup - https://support.google.com/a/answer/174126?hl=en
Check your MX records for Exchange Providers
If you use Office 365 use this link to set up DKIM
Check your SPF setup - http://www.kitterman.com/spf/validate.html
Check your email score and blacklists - www.mail-tester.com or http://spamcheck.postmarkapp.com/
Please don't hesitate to contact our support team if you have questions or in need of further assistance. We're happy to help!