Does Exim ever change messages with respect to the MIME encoding of
parts, if the MIME ACL is not used? That is, can it take an encoded
message, take it apart, and re-encode it (possibly changing the
message's bit representation)?
The context is the link below and down the thread from there. I have
seen this problem for years and many other parts of my email setup have
been changing. Exim has been the one constant, and I never allowed
myself to suspect it. But after the last message from Kevin McCarthy, I
do suspect it.
http://lists.mutt.org/pipermail/mutt-users/Week-of-Mon-20181022/000488.html
See also
https://very.loosely.org/itz-blog/the-problem-with-gpg-signatures.html
which describes the same problem as I tried to solve it more than a year
ago, with quite a different setup (but still behind exim).
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