Hello! I'm fighting with email sending via smtp. My email provider needs per user authentification for outgoing emails.
Error log:
File "/opt/openerp/server/openerp/addons/base/ir/ir_mail_server.py", line 463, in send_email
    smtp.sendmail(smtp_from, smtp_to_list, message.as_string())
and server answer:
SMTPSenderRefused: 553
5.7.1 Sender address rejected: not owned by auth user.