bpo-31887: Adds documentations for special multipart/signed handling (GH-4268)

This pull request adds some information about the special multipart/signed handling to clear about disabling header folding. https://bugs.python.org/issue31887

bpo-31887: Adds documentations for special multipart/signed handling (GH-4268)
This pull request adds some information about the special multipart/signed handling to clear about disabling header folding. https://bugs.python.org/issue31887
622935d9 · Saptak Sengupta · Miss Islington (bot) · 59668aa8 · 622935d9
Commit 622935d9 authored Nov 05, 2018 by Saptak Sengupta Committed by Miss Islington (bot) Nov 04, 2018
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Doc/library/email.generator.rst Doc/library/email.generator.rst +4 -0

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--- a/Doc/library/email.generator.rst
+++ b/Doc/library/email.generator.rst
@@ -36,6 +36,10 @@ something that contains only ASCII characters, using the standard email RFC
 Content Transfer Encoding techniques for encoding email messages for transport
 over channels that are not "8 bit clean".

+To accomodate reproducible processing of SMIME-signed messages
+:class:`Generator` disables header folding for message parts of type
+``multipart/signed`` and all subparts.
+

 .. class:: BytesGenerator(outfp, mangle_from_=None, maxheaderlen=None, *, \
                          policy=None)