WebApp: Incorrect umlaut and special character decoding in mailbody

  • Hello folks,
    having this problem since a while, so it’s not a new finding:
    I’m regularly receiving mails, with incorrectly decoded Umlaut/ special characters in mailbody.
    These mails show up correctly in IMAP-(Apple Mail) and ZPush-(Outlook, iOS-Mail) clients. The issue seems to cover both, plaintext and HTML-contents.
    In most cases, for those mails, the subject is rendered correctly (particulary since commit inetmapi: revert support for vmime RFC6532), but with a few rare exceptions: In these cases, the subjectline still shows up correctly in IMAP- and ZPush-clients, whereas WebApp displays wrong decodings in Subject and body.

    I haven’t found any clue, yet, where the problem might arrise from, but collected a couple of affected mails, which I could supply privately as EML.


  • What does your KC-FILTERED-BODY in webapp/config.php look like?

    It needs to be false, otherwise I got a lot of wrong decodings in the WebApp/DeskApp.

    // Use Kopano Core for HTML filtering, introduced in 8.5.0


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