#2625 new
Stephen Chong

Threading with Outlook-sent emails

Reported by Stephen Chong | August 12th, 2020 @ 08:44 PM

Mailmate does not seem to be detecting the reply-to relationship between emails sent from Outlook/MS Exchange

For example, in the original email, some of the headers include the following (some domain names changed):

Thread-Topic: Chat this week?
Thread-Index: AQHWaC+fdP5k5VLi+Ei4o+XqM3arbqklmIMS///BigCAAEQGTYALw6aA
Date: Mon, 10 Aug 2020 17:20:43 +0000

In the message that was a direct reply, some of the headers include:

Thread-Topic: Chat this week?
Thread-Index: AQHWaC+fdP5k5VLi+Ei4o+XqM3arbqklmIMS///BigCAAEQGTYALw6aAgAItrwA=
Date: Wed, 12 Aug 2020 16:22:25 +0000
References: <E90C0E31-30F4-4B73-A759-26ECC62072CD@mycollege.edu>
In-Reply-To: <595EF641-7046-4AC4-9D41-439074E0370B@mycollege.edu>

However, MailMate does not regard these messages as having any relationship. Note that the In-Reply-To field refers to the field x-ms-exchange-parent-message-id.

I'm happy to privately send more complete header information if needed.

Comments and changes to this ticket

  • Stephen Chong

    Stephen Chong August 12th, 2020 @ 08:52 PM

    Hmm, this might be related to the fact that the Exchange server is automatically re-sending these emails from one account to my account.

    If this is the issue, then I guess this may not be a bug report so much as a feature request that MailMate's threading mechanism is permissive enough to preserve threading for re-sent emails.

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