Hi Everyone, As told I opened an Infra ticket to fix sending .patch to dev@ list.
That was the response I received: " [ https://issues.apache.org/jira/browse/INFRA-19691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17012638#comment-17012638 ] Sebb commented on INFRA-19691: ------------------------------ The content-type will depend on the mail client. I just tried with GMail, and it sent the file test.txt as Content-Type: text/plain; charset="US-ASCII"; name="test.txt" whereas test.patch resulted in: Content-Type: application/octet-stream; name="test.patch" == However, it's usually not ideal to send patches to mailing lists. Better to use an issue tracking system." Then he just Closed the ticket with the resolution: Information Provided BR, Alan