Duplicate header field "MIME-Version" when sending mails via WCF

  • Betroffene App
    WoltLab Suite Forum

    Unfortunately the WCF 2.0 still contains the issue that the header field "MIME-Version" is added twice when sending mails. This is recognized by amavis and might lead to a rejection of WCF e-mails on mailservers with restricted amavis settings. It is also an issue in WCF 1.1, so that I had to change our amavis settings to workaround/ignore this case. Here is the related excerpt of the activation mail:

    X-Amavis-Alert: BAD HEADER SECTION, Duplicate header field: "MIME-Version"
    (...)
    Subject: Activate Your Registration for Website: WoltLab Burning Board 4.0 Demo
    X-Priority: 3
    X-Mailer: WoltLab Community Framework Mail Package
    MIME-Version: 1.0
    From: webmaster@beta.woltlab.com
    Content-Transfer-Encoding: 8bit
    Content-Type: text/plain; charset=UTF-8
    Mime-Version: 1.0

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