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I want my users to be able to open eml files in compose mode in outlook 2010, by default it opens in readonly mode. Is there any way out?

Use: We generate email templates which the users can download and customize it before sending.

3 Answers3

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If you can add the header "X-Unsent: 1" to your .eml, it should open in Compose mode.

Chris
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Works on Microsoft Outlook but does not work on thunderbird.

A related discussion can be found here https://bugzilla.mozilla.org/show_bug.cgi?id=688284

e1on
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    fwiw: the header `X-Mozilla-Draft-Info` seems to work on thunderbird ( sample value: `X-Mozilla-Draft-Info: internal/draft; vcard=0; receipt=0; DSN=0; uuencode=0`). Tested on tb 24.4.0 (win7). – collapsar Mar 20 '14 at 15:18
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Mail on MacOS adds this header internally:

X-Uniform-Type-Identifier: com.apple.mail-draft

Unfortunately, this will still not allow you to sent it directly. However, you can move any mail to your drafts folder and then sent it from there.

Remon
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