On Fri, 09 Apr 2010 21:47:20 -0700, Dirk Hohndel wrote: > On Fri, 09 Apr 2010 21:44:02 -0700, Dirk Hohndel wrote: > > > > here's what's going wrong. Look at the To: line... > > Carl =?UTF-8?b?buKIhXRtdWNoIOSasw==?= Worth , The To: line shows up fine in notmuch-show for me (in emacs). It only shows up like this when editing. I think this is actually a general mail issue, and is not a notmuch issue. I don't understand all the issues, but I think non-ASCII characters in headers have to be encoded, and that's what you're seeing. jamie.