IIS6 Virtual STMP server and Content-Transfer-Encoding RSS

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Last post Nov 07, 2019 06:08 AM by Jalpa Panchal

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  • IIS6 Virtual STMP server and Content-Transfer-Encoding

    Nov 06, 2019 04:08 PM|G-oker|LINK

    Hello,

    I have an "in house" program (installed locally on users PCs) which sends html emails out when requested by the user.

    This email passes though my companies IIS virtual SMTP server.

    If that email is opened on an iPad/Phone, the recipient sees the "quoted-printable" characters (ie =0A etc).

    If viewed via a MAC's default mail app, Windows default mail app, Outlook, webmail etc, then it looks fine.

    It also looks fine if you view the email via icloud.com.

    I believe this is because the email header contains

        MIME-Version: 1.0

        Content-Type: multipart/related;

    but no Content-Transfer-Encoding line ( which might be the issue, as I believe Thunderbird etc ignore this line and deal with the encoding themselves, and the iPhone/Pad email client may not).

    Can you advise how I can tell IIS to include this line in email headers ?

    Is it thought changes in the web.config file ?

    Thanks in advance for your help.

  • Re: IIS6 Virtual STMP server and Content-Transfer-Encoding

    Nov 07, 2019 06:08 AM|Jalpa Panchal|LINK

    Hi,

     IIS 6 is very old version I suggest you could use the latest iis version. which os you are using?

    reference links:

    https://stackoverflow.com/questions/4516576/mail-attachment-and-its-content-transfer-encoding-setting-blackberry-problem

    https://forums.iis.net/t/1223368.aspx

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