[Question] Remove These Headers and Outlook conversation view

Mark Sapiro mark at msapiro.net
Fri Feb 16 01:58:02 UTC 2018

On 02/15/2018 03:57 PM, Eoin Kim wrote:
> Oh, wait.
> Schlake, after Message-ID is altered, is user's Outlook still fine with conversation view? Because I am not sure which criteria is used for conversation view in Exchange server.

Probably not, but consider the alternatives for the Outlook user.

If you don't munge the Message-ID:, she doesn't see the message with
attachment. but the "conversation" threading is maintained for the
message she did receive and subsequent messages.

If you do munge the Message-ID:, she sees both the message with and the
message without the attachment and both these messages are in the
"conversation" because their References: and In-Reply-To: headers are
intact. However subsequent replies to the message are only threaded to
the message without the attachment (assuming she doesn't delete it)
because they don't reference the munged Message-ID:.

Which of those scenarios do you think she'll prefer?

Of course all the above depends on how Outlook actually does threading
in "conversation" view, and I'm only guessing about that.

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

More information about the MailScanner mailing list