error with non-latin characters in recipient

[JoseO]

Binary package hint: evolution-mapi

I'm using evolution-mapi to be able to send/receive messages throug our Exchange server. Everythings work fine regarding send/receive when the names of the recipients are ascii-only letters (i.e. "Peter English <email address hidden>". However, when trying to send e-mails to someone who has non-ascii-only letters in his name (i.e. "Juan Súrnäme <email address hidden>"), the message stucks in the local Outbox folder and there's only an error in evolution status bar with the text "error while sending message...". If I click in the error the expanded explanation is not very explanatory: "Error while sending message. Could not send message". There's no additional output neither in the terminal from which evolution has been launched.

Note that even removing autoexpand (that is: changing the proposed "Juan Súrnäme <email address hidden>" obtained from the Global Address List to "<email address hidden>") the problem is still present.

Receiving e-mail messages from those addresses works OK.

The only workaround I've found so far is to create an SMTP send-only account (fortunately or Exchange server has SMTP enabled) and send messages using SMTP whenever some of the receivers have some áéíóú etc. letters in his/her name.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: evolution-mapi 0.30.3-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-27.48-generic 2.6.35.11
Uname: Linux 2.6.35-27-generic i686
Architecture: i386
Date: Mon Feb 28 10:07:09 2011
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: evolution-mapi