Email glossary · Practical guide
Return-Path: the recorded route for delivery failures
Return-Path records reverse-path information associated with delivery. It is distinct from the address a reader sees in From and the address used for ordinary replies.
Reviewed · Examples are illustrative
Who this helps: Readers checking a term before making an outreach or mailbox decision.
Meaning and common confusion
A sending provider may use a bounce-handling domain here. That can be legitimate, but it matters when investigating SPF identity and alignment. Changing Reply-To does not repair the envelope identity. Inspect a delivered message rather than guessing from the campaign editor.
Worked example
This is a synthetic illustration, not a customer result or a live configuration to copy.
From: [email protected]
Reply-To: [email protected]
Return-Path: [email protected]
Three fields, three roles
A reply-routing change does not automatically change SPF alignment.Checks to make
- Collect the delivered header from a controlled message.
- Identify who configures the bounce domain.
- Compare the authenticated envelope domain with the intended author identity.
Next step and limits
Use the custom Return-Path guide to review provider support. Do not manually add a decorative Return-Path header and assume that it controls the transport envelope or receiver result. The actual submission service must support the intended configuration.
Source: Zintara product context for this operational definition
Source references
Worked examples are illustrative. Editorial procedures are suggested methods, not measured performance claims or promises of additional product features.
Related guides
- Custom Return-Path alignment: verify the envelope your provider uses →
- Envelope sender: the SMTP identity outside the visible message →