Howdy!
As mentioned in #488214, the -a option to mailx isn't specified by POSIX, and heirloom-mailx has a different and incompatible interpretation: Content-Type: text/plain; charset=UTF-8: No such file or directory -- [email protected] -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
