[jira] [Commented] (JAMES-2658) Generic mailet to call an external microservice, and add extra information to an email

[ https://issues.apache.org/jira/browse/JAMES-2658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16764745#comment-16764745 ] Raphaël Ouazana commented on JAMES-2658: > Headers are immutable for a given mail once delivered.

[jira] [Commented] (JAMES-2658) Generic mailet to call an external microservice, and add extra information to an email

[ https://issues.apache.org/jira/browse/JAMES-2658?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16764735#comment-16764735 ] Matthieu Baechler commented on JAMES-2658: -- Implementing RFC 5257 seems a good move, thank you