python / python/cpython

SMTP email policy does not encode non-ASCII characters

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3.7 (EOL) 3.8 (EOL) stdlib topic-email type-bug
Dominant language
Python
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Forks
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PR merge metrics
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Description

BPO 40157
Nosy @warsaw, @bitdancer, @aepsil0n
Files
  • minimal.py
  • Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
    closed_at = None
    created_at = <Date 2020-04-02.13:52:09.254>
    labels = ['3.8', 'type-bug', '3.7', 'expert-email']
    title = 'SMTP email policy does not encode non-ASCII characters'
    updated_at = <Date 2020-04-02.13:52:09.254>
    user = 'https://github.com/aepsil0n'
    

    bugs.python.org fields:

    activity = <Date 2020-04-02.13:52:09.254>
    actor = 'aepsil0n'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = ['email']
    creation = <Date 2020-04-02.13:52:09.254>
    creator = 'aepsil0n'
    dependencies = []
    files = ['49026']
    hgrepos = []
    issue_num = 40157
    keywords = []
    message_count = 1.0
    messages = ['365596']
    nosy_count = 3.0
    nosy_names = ['barry', 'r.david.murray', 'aepsil0n']
    pr_nums = []
    priority = 'normal'
    resolution = None
    stage = None
    status = 'open'
    superseder = None
    type = 'behavior'
    url = 'https://bugs.python.org/issue40157'
    versions = ['Python 3.6', 'Python 3.7', 'Python 3.8']
    

    Contributor guide

    Open the contributing guide

    First steps

    1. Read the whole issue, then the project's contributing guide.
    2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
    3. Fork the repository and make your change on a branch.
    4. Open a pull request that references the issue number.

    Research direction

    Start by running the attached minimal.py reproducer and inspect the email handling it exercises. Trace the SMTP policy behavior for non-ASCII characters, then add coverage for the reported case and confirm that the resulting SMTP message encodes those characters correctly.

    Written by the indexing model from the issue text.

    Assessment

    Tech stack
    python
    Domain
    backend
    Issue type
    Bug
    Difficulty
    4/5
    Estimated time
    3-5 days
    Activity status
    Stale
    Clarity
    Mostly clear
    Newbie friendliness
    35/100

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