mahara-contributors team mailing list archive

[Son Nguyen <1072967@xxxxxxxxxxxxxxxxxx>]

The "Duplicate header field: "Message-ID"" in the email header means the
field "Message-ID" has been declared 2 times in the email header. It is
NOT related to unique msg-id.

What we need to fix are
1. Make sure there is only one "Message-ID" field in the email header.
2. This "Message-ID" field must have an unique value.
3. Add the "In-Reply-To" and "References" fields with correct values to enable the THREADing email messages

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https://bugs.launchpad.net/bugs/1072967

Title:
  Unique message ID required

Status in Mahara ePortfolio:
  In Progress

Bug description:
  from a user:

  We are seeing lots of emails coming from Mahara with duplicate message-id smtp headers between different messages to different people, in violation of RFC2822 which states:
  The message identifier (msg-id) itself MUST be a globally unique identifier for a message. The generator of the message identifier
  MUST guarantee that the msg-id is unique.
  It looks like all users who are subscribed to a thread receive an email on posting with the same message-id header.

  This causes issues with spam filtering.

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