Parámetros de encabezado email-header

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• TL;DR: This page explains how to set up the email header parameters in a channel configuration — the From, Reply to, Error, and optional Sender fields — and how to manage reply handling and email forwarding.

Intents:

• Configure the From name, From email prefix, Reply to name, Reply to email, and Error email prefix in a channel configuration
• Set optional Sender headers when the transmitting entity differs from the From author
• Manage where reply emails, out-of-office notifications, and challenge responses are received
• Set up an email forward process for the delegated subdomain
• Understand the formatting rules for email prefixes

Glossary:

• From name / From email prefix: The sender name and email address used for communications; the prefix uses the selected delegated subdomain (product-specific)
• Reply to name / Reply to email: The name and address used when the recipient clicks Reply in their email client (product-specific)
• Error email prefix: The address that receives asynchronous bounces (ISP errors after a few days), out-of-office notifications, and challenge responses (product-specific)
• Sender headers (Sender name / Sender email): Optional fields identifying the party responsible for transmitting the message when it differs from the From author; adds a Sender SMTP header (product-specific)
• Delegated subdomain: The subdomain used to send the email and used for SPF, DKIM, and DMARC checks (product-specific)

Guardrails:

• When editing an email configuration, you cannot add new profile attributes to header parameters; you must create a new channel configuration.
• For From email prefix and Error email prefix, values must begin with a letter (A-Z) and can only contain alphanumeric characters, plus underscore _, dot ., and hyphen -.
• Sender name and Sender email must be configured together — both filled in or both empty; filling in only one prevents journeys and campaigns from being published with this channel configuration.
• If both Sender fields are empty, or the resolved Sender is identical to From, no Sender header is added.
• The Sender address is not used for SPF, DKIM, or DMARC alignment (only format validation is performed); those checks continue to rely on the From fields and the delegated subdomain.
• If Sender headers are configured and personalization does not resolve to a value for a recipient, the message is not delivered to that recipient.
• The Reply to email must be a valid, correctly formatted address on a subdomain with a valid MX record, otherwise email configuration processing fails.
• Forwarding is set up by Adobe (contact Adobe Customer Care) and can take 3 to 4 days; the forward email address domain cannot match any subdomain delegated to Adobe.
• There can be only one forward email address per subdomain; configurations sharing a subdomain must use the same forward email address.
• If forwarding is not enabled, emails sent directly to the From email address are discarded by default.

Terminology:

• Canonical name: Header parameters — Acronym: n/a — variants: sender headers, header fields
• Synonyms: “From” = “author of the message”; “Sender” = “agent responsible for transmitting the message”
• Do not confuse: “From” (author) ≠ “Sender” (transmitting party) ≠ “Reply to email” (address receiving replies) ≠ “Error email” (address receiving asynchronous bounces, out-of-office notifications, and challenge responses)

FAQ:

• Q: Which address receives asynchronous bounces and out-of-office notifications? — The Error email prefix address; out-of-office notifications and challenge responses are received there rather than on the Reply to email.
• Q: Can I fill in only the Sender name or only the Sender email? — No. Both must be configured together, or both left empty; filling only one prevents publishing journeys and campaigns with the configuration.
• Q: Does the Sender field affect SPF, DKIM, or DMARC? — No. Only format validation is performed on the Sender address; SPF, DKIM, and DMARC continue to rely on the From fields and the delegated subdomain.
• Q: Why did my email configuration fail on submission? — The MX record is likely not configured for the subdomain of the Reply to email address; contact your administrator or use an address with a valid MX record.
• Q: How do I forward emails received for the delegated subdomain? — Contact Adobe Customer Care to set up a forward process, providing the forward email address, sandbox name, and configuration name or subdomain; setup can take 3 to 4 days.