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Messages sent to the Internet are returned to the sender with a 501 invalid hostname error

This document (7001843) is provided subject to the disclaimer at the end of this document.

Environment

Novell GroupWise 5.5 Enhancement Pack (EP)
Novell GroupWise 5.5
Novell GroupWise 6
Novell GroupWise 6.5
Novell GroupWise 7
Novell GroupWise 8

Situation

Messages sent to the Internet are returned to the sender with a 501 invalid hostname error.

550 HOST UNKNOWN is seen on the GWIA.

Resolution

Invalid hostname after the /HN switch in the GWIA.CFG. In this case, "HOSTNAME/DNS" was added to the GWIA.CFG file. Which caused receiving mail servers to respond with a 501 error after the initial HELO.
 
Other error messages that could be seen because of this are:
  1. 504 5.5.2 Helo command rejected: need fully-qualified hostname
  2. Send Failure: 550 Access denied - Invalid HELO name (See RFC2821 4.1.1.1)

Insert the proper domain name in the proper format after the /HN, such as novell.com, in the GWIA.CFG file and the errors will be resolved

 
 

Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7001843
  • Creation Date:10-MAR-09
  • Modified Date:27-APR-12
    • NovellGroupWise

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