Hi all,
With `milter_protocol = 2`, the DKIM signature is invalid if a signed
header is like "Subject:" in this test.eml attached example.
```
From: <t...@example.com>
To: <t...@example.com>
Subject:
Folding_White_Space_and_too_long_subject_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Test
```
It works fine with `milter_protocol = 6`.
I explained this problem here :
https://bugs.launchpad.net/ubuntu/+source/opendkim/+bug/1857618
Let me know if you need more informations to reproduce or understand the
problem.
Do you know if it is normal, or a bug in postfix, or a bug in opendkim ?
Guillaume
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Test
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