commit 8cb65d1381b027f0b09ee36bfed7f35bb4dec9a9
author jpic <jpic@users.noreply.github.com> Wed Jul 17 23:54:25 2019 +0200
committer Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Wed Jul 17 14:54:25 2019 -0700
tree 66906fde428f0af62b753d529cd28a87c9e7438c
parent 719a062bcb7b08a56e6576dcd75f4244e6053209

bpo-34155: Dont parse domains containing @ (GH-13079)



Before:
    
        >>> email.message_from_string('From: a@malicious.org@important.com', policy=email.policy.default)['from'].addresses
        (Address(display_name='', username='a', domain='malicious.org'),)
    
        >>> parseaddr('a@malicious.org@important.com')
        ('', 'a@malicious.org')
    
    After:
    
        >>> email.message_from_string('From: a@malicious.org@important.com', policy=email.policy.default)['from'].addresses
        (Address(display_name='', username='', domain=''),)
    
        >>> parseaddr('a@malicious.org@important.com')
        ('', 'a@')




https://bugs.python.org/issue34155