Returned mail: Data format error

The original message was received at Wed, 15 Jan 1997 22:37:46 -0800
from rob@localhost

   ----- The following addresses had delivery problems -----
news+arpa.nanog (unrecoverable error)

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nrecnews: your message was not accepted by netnews, because:
nrecnews: Message-ID syntax error.
*** Please refer to page 23, paragraph 4.6.1. and Appendix D
*** of NIC RFC #822 for the correct syntax, and fix your mailer.
nrecnews: it was going into the newsgroup arpa.nanog
501 news+arpa.nanog... Data format error

   ----- Original message follows -----