Added

• Remove HTML tags in malformed content types (#229)
• Maximal number of errors recorded in Part limited (#240)
• Builder: Support other parts (#244)
• Additional decoding in mail address (#247)
• Integration test include Go 1.18

Fixed

• Fix for quote-printed utf-8 header with quotes (#237)
• Parse address joined with semicolons (#238)
• Use extended parser after fixing address list (#239)
• Parse media types which are escaped at first rune (#246)

Changed

• Rely on stdlib for decoding to UTF-8, simplifies address parsing (#234)