An email address will not be parsed if the Real Name is also an email address

[seanthegeek]

-Describe the bug
An email address will not be parsed in the display name is also an email address. This is because the Python library module email.utils, (used by mail-parser here) ignores malformed email addresses by default for security reasons. see [CVE-2023-27043] using the default option strict=True. This fix was introduced in Python 3.13 but backported to older Python versions.

For example,

From: alice@example.com <bob@example.com> is parsed as [('', '')]

This type of malformed email address is explicitly called out in the code comments

python/cpython@4a153a1#diff-aef09e3b2ee5f278fa8a8908e2400c129fa3774ee4d5fefe2afa8789c8331267R163

To Reproduce

Parse an email with a from address that has a display name that is also an email address.

Expected behavior

Considering mail-parser is often used to parse benign and malicious emails, rather than refusing to parse those addresses, I would prefer this output:

[('alice@example.com', 'bob@example.com')]

Raw mail

From: alice@example.com <bob@example.com>
To: example@example.com
Subject: Example Email

Hello world!

Environment

• OS: Linux
• Docker: No
• Python version: 3.11.2
• mail-parser version 4.1.2