On Thu, Dec 18, 2014 at 7:59 AM, Michael Ströder <mich...@stroeder.com> wrote: > You should really think about why these chars were excluded in the > configuration: The reason is that those they are special in shells. > > And many SMTP deployments have pretty naive (shell) scripts or software with > shell exits. So allowing those chars can cause more or less big security > risks. For this reason it's likely that you will end in spam filters / black > lists etc. because systems may assume you want to do some harm. > > So I would really rethink the requirements. > > Your mileage may vary. But you have been warned.
It's worth noting that the SMTP spec never says that every server must accept all characters. I could create a perfectly compliant mail server in which recipient names may not include the letter 'e', for instance. It would be a bug if smtplib rejected those, but since the rejection is coming from the server, that's fairly legit. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
