Campaign dashboards summarize campaign outcomes. Bounce diagnostics can show how receiving providers are treating a domain and help identify emerging infrastructure problems.
Sequencer dashboards are built to answer marketing questions: opens, clicks, replies, meetings. That is useful, but they summarize outcomes after the fact. The raw bounce stream answers an operations question those dashboards may obscure: how are mailbox providers treating your infrastructure right now?
Many hard bounces include a rejection code or diagnostic string from the receiving server. When that detail is available, it can help separate very different problems:
Summary dashboards can roll these into one bounce percentage. That number may look acceptable while the composition underneath shifts from stale addresses toward policy or reputation rejections, which calls for a different response.
Two campaigns with the same bounce rate can have very different problems underneath.
Reputation-class rejections can cluster before the overall bounce rate looks alarming. Repeated "blocked" diagnostics from one provider on one domain deserve investigation while the response may still be to slow down, review the cause, and rest the asset. List-quality bounces often follow a different pattern and can point back to a source or validation problem rather than the sending infrastructure alone.
Keep the dashboard for campaign decisions. Use detailed bounce data for infrastructure decisions, grouped by domain, provider, and rejection class. Mailrun uses that operational detail because important diagnostic information is often lost when results are reduced to one campaign-level percentage.
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