Hi, Quoting David Bremner (2015-09-18 14:03:20) > I'd recommend making your own new test, rather than modifying existing > ones to test multiple things. I'd also recommend using json / sexp > output for your tests, since the ad-hoc text format is kindof > semi-deprecated. can you take care of that? My goal was actually just to report this bug, not to spend more time to develop a proper patch for it :) Also, a related problem occurs when the Content-Disposition header contains UTF8 characters, in which case the header value gets encoded. Apparently notmuch does not attempt to decode it. Example mime header: --===============7161366892858136962== Content-Type: application/pdf MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: =?utf-8?b?YXR0YWNobWVudDsgZmlsZW5hbWU9ImJlZ3LDvMOfdW5n?= =?utf-8?b?LnBkZiI=?= Thanks! cheers, josch