sfmc // DeliverabilityPRODUCTION

Bounce Concentration by Domain & Category

Aggregate recent bounce evidence before deciding whether an issue is recipient-level, domain-specific or broader.

sqlbouncedomaindeliverability

Trust & provenancePRODUCTION

Evidence tierPRODUCTIONOfficial sources1Other sources0Last verified2026-10-05

Evidence tier describes my hands-on relationship with the content. Official sources describe platform contracts/documentation. Production observations should not automatically be treated as official limits.

EvidencePRODUCTION

Difficultyfoundation

Verified2026-10-05

Use when

A send shows an unexpected bounce spike.

Investigating ISP/domain concentration.

SELECT
    Domain,
    BounceCategory,
    BounceType,
    COUNT(*) AS BounceCount
FROM _Bounce
WHERE EventDate >= DATEADD(day,-3,GETDATE())
GROUP BY Domain, BounceCategory, BounceType

Why it works

Grouping _Bounce by domain/category exposes concentration that is hidden in aggregate campaign metrics.

Operational notes

Inspect SMTPCode/SMTPBounceReason at row level after identifying the dominant domain/category clusters.

Recent Bounce Diagnostics

Extract recent bounce category and SMTP details for deliverability investigation.

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Sources / verification

Salesforce — Review Bounce Data Using Automation Studio ↗

Bounce Concentration by Domain & Category

Keep following the context.