A bounce occurs when an email cannot be delivered. Typically, the email server will inform you of the reason. There are two categories for these bounces: hard bounces and soft bounces.

Man angry for bounced email

Hard Bounce

A hard bounce means there is a persistent barrier preventing the delivery of an email. Usually, bounced email addresses are automatically and instantly removed from your list. All emails for upcoming campaigns will not include the cleaned addresses. Some of the most common causes of hard bounces in emails include:

  • The recipient's email address entered is not valid.
  • The recipient's email server has completely stopped delivery.

Soft Bounce

When a soft bounce occurs, the email address is legitimate, and the message was delivered correctly to the inbox. However, the bounce may have occurred for one of the following reasons:

  • The recipient's mailbox is full.
  • The mailbox is not in use.
  • The recipient's email server is offline or unavailable.
  • The message content has been censored.
  • The message is too long.

This is usually considered a short-term issue as the server can be patched, the recipient can clear their inbox, and the message size can be reduced.

Why Do Emails Bounce?

Now that you have gained this useful information about the types of bounces, learn about the reasons why emails often bounce, and how you can prevent it using the powerful tool Valid Email.


Try it and give it a chance by validating your email


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