Email Authentication Change Pack
Prepare a private change pack
Your change pack will appear here.
One record for one bounded change
The pack keeps the sending inventory, current and intended public records, provider-side action, received-header assertions, human owner and exact rollback values together. It does not query or edit DNS.
Evidence is not automatically trusted
Authentication-Results fields are assertions added by receiving systems. Confirm the trusted receiver and full header context. Conflicting or absent results remain visibly unresolved.
Human approval remains mandatory
A complete pack is preparation evidence, not permission to publish. Review current provider instructions, DNS TTLs, business timing and rollback before making any production change.
Authoritative references
Read the underlying standards and provider instructions before changing production DNS: RFC 7208 (SPF), RFC 9989 (DMARC), Google Workspace SPF guidance and your sending provider's current DKIM documentation.
Publish carefully
Always verify generated records against your email provider's official documentation. Never paste private DKIM keys, DNS passwords or API tokens into a public tool.
Editorial responsibility
Published by Acerville Sparks Limited. Software assists research, drafting and automated record testing. Internet standards, provider documentation, reproducible checks and limitations are shown so readers can inspect the work. No independent deliverability consultant review is claimed. Reviewed 4 September 2026.
What this site does not do
No inbox guarantee. No live DNS checks. No storage of entered data. No passwords or private keys requested.