Multi-brand sellers often break SPF/DKIM when adding a new domain. Treat auth as a release gate.
Steps
- Inventory every sending domain and vendor.
- Keep SPF under lookup limits; prefer includes carefully.
- Align DKIM selectors with ESP documentation.
- DMARC start at none, then quarantine with monitoring.
- Re-check after any ESP or subdomain change.
Field note
Name an owner on the last line so tasks do not float.
Reference hubs: evaluation, eBay123, KR123.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
Addendum: pilot on a small SKU set before scaling; keep dates, owners, and screenshots for audit. Revisit the checklist after every peak week.
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