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  1. OpenNMS
  2. NMS-7582

non RFC conform behaviour of SmtpMonitor

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    Details

    • Type: Bug
    • Status: Resolved (View Workflow)
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 15.0.2
    • Fix Version/s: 18.0.0
    • Security Level: Default (Default Security Scheme)
    • Labels:
      None
    • Environment:
      Debian 7

      Description

      Hi,

      When I want to check a mail server with service="SMTP" OpenNMS keeps telling me that the service is down "Did not receive expected response within timeout timeout". I traced the problem and saw, that OpenNMS stop the communication after the first answer of the SMTP server.

      On my server the first answer ist "220-ESMTP ..." and a CR.
      After 3 seconds postfix continues with a "220 ESMTP ..." and CRLF.

      According to the RFC clients have to wait until the CRLF is sent. OpenNMS does not wait. So it sees the wrong banner.

      I have to reconfigure my postfix to make an exeption for my opennms server and to deliver the correct banner from the start.

      I would be nice, if the problem could be fixed within OpenNMS.

      Michael.

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            • Assignee:
              cgorantla Chandra Gorantla
              Reporter:
              misch Michael Schwartzkopff
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              Dates

              • Created:
                Updated:
                Resolved: