The response from the remote server was:
554 Message not allowed - 
Which is not very helpful!
Googling that suggests that happens a lot when sending to Yahoo, which
is not your recipient.
Yes it is, ‘yahoodns.net’. Perhaps that's what you meant to say.
$ mhstore -nov -type message/rfc822 -outfile - |
> mhstore -nov -file - -type message/delivery-status -outfile - |
> grep -iA1 remote-mta
Remote-MTA: dns; mx-aol.mail.gm0.yahoodns.net. (18.104.22.168, the server
the domain verizon.net.)
Perhaps Norm should try wrapping the jar/zip in a tar file.