We often see test emails go into spam filters. This is because the sending domain is similar to your domain but was not generated from your email server. This is very common and not a concern. We process Millions of emails successfully and have a team dedicated to watching the ever-changing Spam rules to make sure our clients have the highest deliverability possible. As with any email communication, some email will end up in spam and junk folders but Retreva has taken extraordinary measures to minimize the risk.