[Email::MIME] [Resent with registered address] Message structure destroyed by unnecessary content type parameter

Hello, I am sorry I sent the message below with a non-registered mail address. Regards Jochen Hello, I am using Email::MIME to analyze messages. This works fine, but I found that the mail structure analysis fails (partly) when a mail program adds additional parameters to the content

Re: [Email::MIME] [Resent with registered address] Message structure destroyed by unnecessary content type parameter

Hello, I debugged my demo program and now I assume the problem is located in the line concatenation of Email::MIME. The additional parameter is located on a separate line: Content-Type: multipart/related ;boundary=E12E79A3A5A642B5BDEDBECB78526EFD ;type=text/html . The module