Tickets :: Comment on [#11058] S/MIME signed messages cannot be verified if body contains 8-bit characters

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Comment	> The problem is not in postfix but in Horde/Mime/Part.php, function > send(), starting on line 1669. > > There is code that detects if MTA supports 8BITMIME (RFC 1652) or > BINARYMIME (RFC 3030) extensions and re-encodes the mimePart. > > A S/MIME part cannot be reencoded from quoted-printable to anything > else because it breaks the signature. > > One of possible solutions would be to extend the send function by > giving it a new boolean parameter to use only 7bit encoding > (quoted-printable) for S/MIME signed messages and set this parameter > on sign time.
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