Deliverability

The ability of delivering messages to your contacts might be mysterious at first, but we're here to help you understand it.

• What is Apple Mail Privacy Protection, and how does it affect our deliverability?
• How to safelist email addresses to ensure smooth email delivery?
• Why do my emails sometimes end up in a spam folder?
• What are complaints?
• Does the reputation of the from field influence deliverability to the inbox vs. spam folder?
• Why shouldn’t I re-add bounced emails to my list?
• Why can some emails display as “on behalf of” or “via”?
• What are bounces?
• What are the best email practices that influence delivery?
• How good is your email deliverability?
• How to find my message headers?
• Why do messages sent to my own domain bounce?
• What is click-to-open rate (CTOR)?
• Why do ISPs recognize messages as spam differently?