Zywall 5 UTM and new domain addition in Messaging Gateway

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Article ID: 155926

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Updated On:

Products

Messaging Gateway

Issue/Introduction

  • After adding a new local domain under Protocols > Domains > Host, email are not getting delivered with errors:
    • 450 4.4.1 [internal] Connection Timed Out

      or

      421 4.4.0 [internal] no MXs for this domain could be reached at this time
  • Mail is able to be sent via telnet
  • Zywall 5 UTM is in the network

450 4.4.1 [internal] Connection Timed Out

or

421 4.4.0 [internal] no MXs for this domain could be reached at this time
 

Cause

The email is routed to an external domain by the Zywall firewall.

Resolution

Update the firmware of Zywall 5 UTM to version V4.01 (XD.0) / 08.08.2006 to resolve.