Comment 7 for bug 1833331

Thanks Forest for the report and Christian for chiming in. I think the current behavior is the intended one: mail it sent using a mailx compatible MUA, which is often used for automated message sending. mailx implementations (bsd-mailx, mailutils, ...) differ and may require to be configured to work properly. For example mailx from mailutils can send mail using a remote SMTP server, authenticating if needed; this means that different setups are supported, but some configuration is necessary.

If you just want to pass mail to the local MTA I'd suggest to install bsd-mailx instead of mailutils.

As this looks like a local configuration problem, rather than a bug in Ubuntu, I'm marking this report as Incomplete. If you think this issue deserves more discussion, then we'd be grateful if you would explain why you believe this is a bug in Ubuntu rather than a configuration issue, and then change the bug status back to New. Thank you!