Returned mail: Host unknown (Name server: hops.whaton.upenn.ed: host not found)

From: Mail Delivery Subsystem <MAILER-DAEMON>
Date: Sat, 15 Mar 1997 08:04:52 -0500 (EST)

This is a MIME-encapsulated message

• --IAA06069.858431092/max.cybermax.net

The original message was received at Sat, 15 Mar 1997 08:04:51 -0500 (EST) from pm3-29.cybermax.net [208.197.144.29]

• The following addresses have delivery notifications ----- <majordomo_at_hops.whaton.upenn.ed> (unrecoverable error)
• Transcript of session follows ----- 550 <majordomo_at_hops.whaton.upenn.ed>... Host unknown (Name server: hops.whaton.upenn.ed: host not found)
  • --IAA06069.858431092/max.cybermax.net Content-Type: message/delivery-status

Reporting-MTA: dns; max.cybermax.net
Received-From-MTA: DNS; pm3-29.cybermax.net Arrival-Date: Sat, 15 Mar 1997 08:04:51 -0500 (EST)

Final-Recipient: RFC822; majordomo_at_hops.whaton.upenn.ed Action: failed
Status: 5.1.2
Remote-MTA: DNS; hops.whaton.upenn.ed
Last-Attempt-Date: Sat, 15 Mar 1997 08:04:52 -0500 (EST)

• --IAA06069.858431092/max.cybermax.net Content-Type: message/rfc822