Emails you send from Kindful are transactional, like automatic email receipts, acknowledgement emails, registration form receipts, and password resets. Your customers are less likely to mark transactional emails as spam.
If you send non-transactional bulk email (like newsletters) from another tool, we recommend you monitor your spam complaint rate as a general best practice. When recipients mark your emails as spam, your spam complaint rate is affected.
You must keep your spam complaint rate below 0.3%, which is three or fewer spam complaints for every 1,000 sent emails. When you maintain a spam complaint rate below 0.3%, your supporters are more likely to receive your emails.
To help keep your spam rate low:
Send your test emails to a spam checker first like mail-tester.com.
Limit the amount of images in your email. The greater the text-to-image ratio in your email, the less likely it will be marked as spam.
Note: Starting February 1, 2024, Google requires bulk senders to follow new email delivery requirements, which include a spam rate requirement. To comply, your organization must keep the spam rate reported in Google Postmaster Tools below 0.3%. For information about how to add your organization's domain to Google Postmaster Tools, view Get Started with Postmaster Tools in the Google documentation.