On Friday, 24 June 2011 at 00:00, Lars Hecking wrote: > > > I am facing the same problem now, but may have a bit more information. > > Original message has a multipart/signed structure with a qp text and > a signature part, all of which is wrapped into a multipart/mixed > structure, presumably done by the list server for the purpose of adding > a (text, 7-bit) footer. Exchange flattens the struture into a multipart/ > mixed with a qp text part, a application/pgp-signature part in base64, > and another base64 text part. > > I presume mutt needs multipart/signed.
Sounds like a reasonable guess. I don't suppose you could send in a message that has been mangled this way? It would make it easier to test.
