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.