How To: Fix an Invalid Email Address
Learn why some emails addresses are invalid, and how to fix them!
Delivery Rate (DR)
Also known as: DR
Delivery rate is the percentage of emails that are accepted by recipients' mail servers without bouncing. It shows how many of your sent emails clear the technical checks so they can be placed in a mailbox.
Delivery rate tells you how many of your emails reach the receiving mail server without bouncing. It is calculated from the emails you send and the ones that fail. A high delivery rate means mailbox providers accept most of your traffic. It is a basic health check for your sending.
People use delivery rate to spot problems with list quality or technical setup. If it drops, it often points to bad addresses, authentication issues, or reputation trouble. Watching this number over time helps you catch issues before they become bigger. It also gives helpful context to other metrics like open rate.
As a simple habit, review delivery rate after every big campaign. If it falls below about 95 percent, look at your bounce report and remove bad addresses. Then confirm your DNS records and sending domain are set up correctly. Small fixes here protect your reputation and make every later send more effective.
Related Terms
Bounce Rate(Email Bounce Rate)
Bounce rate is the percentage of emails that could not be delivered to recipients. It shows how many addresses are invalid or blocked compared to the total you tried to send.
Learn more →Forward Rate(Share Rate)
Forward rate is the percentage of delivered emails that people share or forward to others. It shows how many subscribers liked your email enough to pass it on.
Learn more →Inbox Placement Rate(IPR)
Inbox placement rate is the percentage of your sent emails that land in the inbox instead of spam or getting blocked. It shows how often your messages actually reach people.
Learn more →Unsubscribe Rate(Unsub Rate)
The unsubscribe rate is the percent of delivered emails that lead to an unsubscribe. It shows how many people no longer want to hear from you after a send.
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