Bounce categories

In email marketing, bounce categories play a crucial role in enhancing campaign effectiveness and optimizing recipient communication. Bounces occur when an email fails to deliver. Categorizing bounces enables marketers to understand non-delivery reasons and take appropriate actions.

There are two main bounce categories: "soft" (temporary) and "hard" (permanent). Soft bounces arise from transient issues like a full mailbox or temporary server problems. They suggest the email might be successfully delivered later, warranting a subsequent delivery attempt.

However, hard bounces indicate enduring issues like an invalid email or nonexistent recipient. Swift removal from the recipient list is necessary to uphold list quality and sender reputation. Consistent mailing to invalid addresses can label the sender as a spam threat.

Accurate bounce categorization often requires technical integration for automatic feedback from email servers, a feature implemented in the eyepin Bounce Manager.

Monitoring and analyzing bounce categories helps recognize trends and maintain lists, boosting deliverability. A clean recipient list increases the likelihood of emails landing in inboxes rather than spam folders.

The Bounce Report may include the following bounce messages:

* 420 Connection timeout
* 421 E-Mail temporary not deliverable
* 441 Receiving mailserver communication failure
* 447 Receiving mailserver unreachable
* 452 Mailbox over quota
* 500 Receiving mailserver blocks delivery
* 512 Domain error 
* 515 Wrong address format
* 550 Recipient unknown
* 570 Rejected due to spam detection
* 700 Configuration error 
* 4401 Send timeframe exceeded
* 4402 Secure connection (TLS) failed