Right now, Trojita can sort-of forward the messages (simply drag a message to an already opened composer window). However, it would be cool to set up e.g. the subject field properly and also to mark the original message as forwarded. In addition to that, it should be able to forward the messages inline in order to workaround the longstanding bug in GMail which just shows an "foo.eml" attachment without any other details.
Git commit 0d0c6814a0b3bc863ee9e272b9f1d43b5062d043 by Karan Luthra.
Committed on 20/05/2014 at 05:24.
Pushed by karanluthra into branch 'master'.
Support for forwarding messages as attachments
Allow forwarding of a message as an attachment by means of menu actions.
Forwarding takes care of mangling the subject line and marking the
original message as "$Forwarded".
Thanks to paalsteek for his initial work on this.
M +27 -0 src/Composer/MessageComposer.cpp
M +3 -0 src/Composer/MessageComposer.h
M +4 -0 src/Composer/Recipients.h
M +7 -0 src/Composer/SubjectMangling.cpp
M +1 -0 src/Composer/SubjectMangling.h
M +26 -1 src/Composer/Submission.cpp
M +3 -0 src/Composer/Submission.h
M +24 -0 src/Gui/ComposeWidget.cpp
M +2 -0 src/Gui/ComposeWidget.h
M +18 -0 src/Gui/MessageView.cpp
M +1 -0 src/Gui/MessageView.h
M +14 -0 src/Gui/Window.cpp
M +2 -0 src/Gui/Window.h
Forward as Attachment is now available for use in the current git and displays fine on Gmail as well. However, the need for Inline Forwarding isn't ignored, and another feature request for Inline Forwarding support has been filed at https://bugs.kde.org/show_bug.cgi?id=338053 .