Re: [Evolution] Evolution some time not show .xml.p7m attach

[Milan Crha <mcrha redhat com>]

On Tue, 2019-07-02 at 17:52 +0200, Dario Lesca wrote:
> I have send to you the .mbox file.

        Hi,
thanks, received and tested. The thing is that the inner message has
two application/octet-stream attachments. One is the .xml file, the
other one is .xml.p7m file, both part of multipart/mixed. Evolution 
tries to guess what the subparts of the multipart/mixed contain. For
the .xml file it properly guessed it's application/xml and showed it as
such. For the .xml.p7m it properly guessed it's application/pkcs7-mime
part. These are treated specifically in Evolution. You cannot get the
inner .xml file, only the certificate is shown within that red banner
"Invalid signature". When clicking the button on the left of that red
banner, then you'll get the certificate. Not the inner file(s).

I opened a bug for you at [1] (bugs are better for tracking and history
behind the changes) and fixed it for 3.33.4 and 3.32.4.

Thank you for your help with this.
        Bye,
        Milan

[1] https://gitlab.gnome.org/GNOME/evolution/issues/519