Andrea Cosentino created CAMEL-23520:
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Summary: camel-mail: option to lock recipients/sender/subject to
endpoint URI
Key: CAMEL-23520
URL: https://issues.apache.org/jira/browse/CAMEL-23520
Project: Camel
Issue Type: Improvement
Components: camel-mail
Reporter: Andrea Cosentino
MailBinding.populateMailMessage dispatches to setRecipientFromCamelMessage
whenever an inbound exchange has a To/CC/BCC header, overriding the endpoint
URI recipients. appendHeadersFromCamelMessage does the same for
from/sender/subject. This is intentional and documented in mail-component.adoc
("Headers take precedence over pre-configured recipients"); see also CAMEL-812.
Proposal: add opt-in @UriParam options on MailConfiguration (defaults preserve
current behaviour, no breaking change):
* useHeaderRecipients (default true) - when false, populateMailMessage always
uses setRecipientFromEndpointConfiguration.
* useHeaderFrom / useHeaderSubject (default true) - when false,
appendHeadersFromCamelMessage skips the from/sender and subject overrides.
Also add a doc note cross-linking to
docs/user-manual/modules/ROOT/pages/security-model.adoc, section "Strip headers
at the trust boundary".
Tests covering both true and false for each new option.
_Claude Code on behalf of Andrea Cosentino_
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