How does ReferralCandy prevent campaign emails from being marked as spam?

The emails that we send out contain special security and authentication features such as DKIM and SPF to help prevent them from being marked as spam. We have a Return Path Sender Score of 99.

However, we cannot guarantee a 100% non-spam rate and a small proportion of emails may still be flagged as spam. If you are seeing a large proportion of the emails sent out to your customers being flagged as spam, please contact us via the in-app contact us form so that we can look into the issue.