ppkarwasz opened a new issue, #3704: URL: https://github.com/apache/logging-log4j2/issues/3704
Currently, the [SMTP Appender](https://logging.apache.org/log4j/2.x/manual/appenders/network.html#SmtpAppender) does not support adding custom headers to outgoing email messages. In contrast, the [HTTP Appender](https://logging.apache.org/log4j/2.x/manual/appenders/network.html#HttpAppender) allows users to define custom headers using `<Property>` elements. Introducing similar support for the SMTP Appender would enhance feature parity across appenders and improve user experience and flexibility. ### Proposed Solution Both the HTTP and SMTP Appenders extend `AbstractFilterable` and already support `<Property>` configuration elements. In the HTTP Appender, these `<Property>` elements are interpreted as HTTP headers. Similarly, the SMTP Appender could treat `<Property>` entries as custom email headers. **Example:** ```xml <Appenders> <SMTP name="Email" ...> <Property name="X-Custom-ID">12345</Property> <Property name="Reply-To">nore...@example.com</Property> </SMTP> </Appenders> ``` This change would preserve existing behavior while enabling greater customization for advanced email use cases. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@logging.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
