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Don't DKIM-oversign Sender header field #768

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foxcpp opened this issue Feb 27, 2025 · 0 comments
Open

Don't DKIM-oversign Sender header field #768

foxcpp opened this issue Feb 27, 2025 · 0 comments
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good first issue Easy to do, good for newcomers. mta-out Related to MSA or outgoing message processing part of MTA functionality. security Related to security measures.

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foxcpp commented Feb 27, 2025

Sender header field is oversigned even though it is not documented. To make maddy more compatible with the mailing list, it should be signed only if it is included and NOT oversigned.
@foxcpp foxcpp added security Related to security measures. mta-out Related to MSA or outgoing message processing part of MTA functionality. good first issue Easy to do, good for newcomers. labels Feb 27, 2025
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good first issue Easy to do, good for newcomers. mta-out Related to MSA or outgoing message processing part of MTA functionality. security Related to security measures.
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