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Email bounce investigation

documentation.bloomreach.com

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  1. The investigation process consists of these steps: “Monitor the main indicator = the delivery rate.” Identify the impacted ISPs and bounce rates.

    In Bounce-rate monitoring

  2. Identify the impacted ISPs and bounce rates. “The recommended delivery rate during the warm-up is above 99%.” Delivery rate between 99-98% is OK but requires closer monitoring. If the delivery rate doesn't improve after 3 sends, investigate.

    In Bounce-rate monitoring

  3. The recommended delivery rate during the warm-up is above 99%. “Delivery rate between 99-98% is OK but requires closer monitoring.” Delivery rate below 98% needs to be investigated sooner rather than later.

    In Bounce-rate monitoring

  4. Delivery rate between 99-98% is OK but requires closer monitoring. If the delivery rate doesn't improve after 3 sends, investigate. “Delivery rate below 98% needs to be investigated sooner rather than later.” Delivery rate below 95% requires immediate investigation.

    In Bounce-rate monitoring

  5. The recommended delivery rate during the warm-up is above 99%. “If the delivery rate doesn't improve after 3 sends, investigate.” Delivery rate below 98% needs to be investigated sooner rather than later.

    In Bounce-rate monitoring

  6. Monitor the main indicator = the delivery rate. “Identify the impacted ISPs and bounce rates.” The recommended delivery rate during the warm-up is above 99%.

    In Bounce-rate monitoring

  7. These are specific error codes from the Soft_bounced messages [last 48 hours] report that needs litigation or further investigation with one of our emailing specialists. “Mailbox full No action is required. However, if you are experiencing serious or long-term deliverability issues, we recommend suppressing these contacts for 14 days after the first soft bounce.” See the matrix for problem solving:

    In Soft-bounce retry policies

  8. A. If the hard bounce rate is 0.5-1% and only 1 ISP is affected. “It’s possibly a result of adding new audiences with email addresses that aren't valid anymore.” B. If the hard bounce rate exceeds 1.5% and only 1 ISP is affected.

    In Email address validation

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