On 2016-03-05 at 23:03, Xu Wang wrote: > I am not planning to make bug report because I do not know how to make > minimal example. I think minimal example would only use abook but I > only use abook through mutt.
Minimal expectations of abook seems to be the "From:" header, so it is sufficient to create a file containing From: =?UTF-8?B?SsOyaG4gRMO2ZQ==?= <f...@bar.org> and do $ cat file | abook --add-email which is the same as mutt does - namely calling abook, which reads the message from stdin (compare your mutt keybindings). I derived the above decoded string with python, to create such a failing example: >>> print b64encode('Jòhn Döe').decode('utf-8') SsOyaG4gRMO2ZQ== >>> print b64decode('SsOyaG4gRMO2ZQ==').decode('utf-8') Jòhn Döe Best regards, Andreas