After using the HTML Mail plugin, a
multipart/alternative message is created to hold the
text/plain and the text/html portions of the email.
Deliver.class.php adds "Content-Transfer-Encoding:
base64" to the section.
This causes a problem when passed through Anomy
Sanitizer. Both the plain and html portions of the
multipart/alternative section become unreadable.
The following is from RFC 2045:
If an entity is of type "multipart" the
Content-Transfer-Encoding is not permitted to have any
value other than "7bit", "8bit" or "binary".
Attached is a patch for SquirrelMail 1.4.6. However,
the same section of code can be added to 1.4.4.
I use the following:
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