(also known as soft blocks). Email messages that are sent to a valid email address but are not delivered to the recipient’s inbox are considered a soft bounce. This could be because their mailbox was full, which can happen with mailbox providers such as Microsoft Outlook, the email was too large, or the mail server was down. Email addresses that soft bounce are still valuable and should not be blacklisted. The best bounce management software can automatically detect this, and try these emails again.
Messages may permanently fail because the email address doesn’t actually exist or is no longer valid. For this bounce type, bounce management software can automatically suppress these emails from your email lists. This will help you keep a clean email list and a positive email reputation.
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