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    Mails sent from FileMaker via SMTP are considered SPAM

    HOnzaKoudelka

      Summary

      Mails sent from FileMaker via SMTP are considered SPAM

      Product

      FileMaker Pro

      Version

      11v2

      Operating system version

      Mac OS X 10.6.3

      Description of the issue

      Mails sent from FileMaker Pro directly via SMTP are given high spam score because of invalid Message-ID and unnecessarily used Base64 encoding for the From header.

      Steps to reproduce the problem

      1. Send Mail via SMTP server to an e-mail account which hase server side spam filter, such as SpamAssassin setup to only add headers to spam but not delete it. Use complete from header including name and e-mail - i.e. "HOnza Koudelka"

      2. Open the received e-mail and display raw headers

      3. Look for headers From, Message-ID, X-Spam-Status and X-Spam-Report

      Expected result

      Well formatted e-mail should contain something like this:

      From: "HOnza Koudelka"
      Message-ID:
      X-Spam-Status: No, score=2.8 required=5.0 tests=AWL,RDNS_NONE
           autolearn=disabled version=3.2.1

      The key is the status No and the score which should be well under the required 5.0.

      Actual result

      From: =?UTF-8?B?SE9uemEgS291ZGVsa2E=?=
      Message-ID:
      X-Spam-Status: Yes, score=5.2 required=5.0 tests=FROM_EXCESS_BASE64,
           INVALID_MSGID,RDNS_NONE autolearn=disabled version=3.2.1
      X-Spam-Report:
           *  3.0 INVALID_MSGID Message-Id is not valid, according to RFC 2822
           *  2.1 FROM_EXCESS_BASE64 From: base64 encoded unnecessarily
           *  0.1 RDNS_NONE Delivered to trusted network by a host with no rDNS

      Workaround

      Use a plug-in to send e-mails directly through SMTP

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