Sending email to addresses containing unicode characters
cannot be parsed by python and result in a UnicodeEncodeError.
This PR catch that specific exception and output a meaningful
error message.
Decision has been taken to not trigger any error message
client-side has it would have needed modifications on some
sensitive low-level backend code.
To reproduce:
- Configure odoo so it uses an email server
- Send an invoice to a partner whoose email address contains
some unicode characters (exemple: æøåÇÀ@example.com)
opw-1892409
closesodoo/odoo#27804