If source is something like "admin@éxample.com" <admin@éxample.com> candidates founds are ['"admin@\xc3\xa9xample.com"', 'admin@\xc3\xa9xample.com'] and the first one raises an error because of "". Malformed addresses should be ignored. opw-2982426 closes odoo/odoo#102353 X-original-commit: 35ad2dd630a8ed173c6a9275585eac46b9a19363 Signed-off-by: Raphael Collet <rco@odoo.com> Signed-off-by: Julien Castiaux <juc@odoo.com>