How can I interpret provider-specific bounce details?

• Interpreting provider-specific bounces requires multiple sources:
• Step 1: Capture full details
• Record complete SMTP response. Include enhanced status codes. Preserve any reference URLs.
• Step 2: Consult documentation

Gmail: support.google.com/mail postmaster articles. Microsoft: docs.microsoft.com Exchange error references. Yahoo: postmaster.yahooinc.com. Provider-specific postmaster pages.

• Step 3: Decode the structure
• Basic code (5xx/4xx) for severity. Enhanced code (X.Y.Z) for category. Message text for specifics.
• Step 4: Track patterns
• Compare against historical bounces. Note provider-specific quirks. Build internal documentation.
• Step 5: Test and verify
• Validate interpretation through testing. Confirm remediation addresses cause.
• Interpretation combines documentation with experience. Each provider's dialect becomes familiar over time.