Mails landen trotz SPF, DKIM und DMARC im SPAM-Ordner von GMAIL und MS

This message is an automatic response from isNOTspam's authentication verifier service. The service allows email senders to perform a simple check of various sender authentication mechanisms. It is provided free of charge, in the hope that it is useful to the email community. While it is not officially supported, we welcome any feedback you may have at .  

Thank you for using isNOTspam.

The isNOTspam team

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Summary of Results
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SPF Check : pass
Sender-ID Check : pass
DKIM Check : pass
SpamAssassin Check : ham (non-spam)
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Details:
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HELO hostname: <sub.domain.tld>
Source IP: <externe IP>
mail-from: <alias@domain.tld>
Anonymous To: <...>@isnotspam.com
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SPF check details:
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Result: pass
ID(s) verified: smtp.mail=<alias@domain.tld>
DNS record(s):
<domain.tld>. 28795 IN TXT "v=spf1 a mx ip4:<externe IP> -all"  


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Sender-ID check details:
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Result: pass

ID(s) verified: smtp.mail=<alias@domain.tld>
DNS record(s):
<domain.tld>. 28795 IN TXT "v=spf1 a mx ip4:<externe IP> -all"  


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DKIM check details:
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Result: pass
ID(s) verified: header.From=<alias@domain.tld>
Selector=<ExchangeHostname>
domain=<Domain.tld>
DomainKeys DNS Record=<ExchangeHostname>._domainkey.domain.tld

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SpamAssassin check details:
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SpamAssassin 3.4.1 (2015-04-28)

Result: ham (non-spam) (03.7points, 10.0 required)

pts rule name description
---- ---------------------- -------------------------------


* 3.5 BAYES_99 BODY: Bayes spam probability is 99 to 100%
* [score: 1.0000]
* -0.0 SPF_HELO_PASS SPF: HELO matches SPF record
* -0.0 SPF_PASS SPF: sender matches SPF record
* -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain
* 0.2 BAYES_999 BODY: Bayes spam probability is 99.9 to 100%
* [score: 1.0000]
* 0.1 HTML_MESSAGE BODY: HTML included in message
* -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's  
* domain
* 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily
* valid
* -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature
* 0.0 TVD_SPACE_RATIO No description available.
X-Spam-Status: Yes, hits=3.7 required=-20.0 tests=BAYES_99,BAYES_999,
DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HTML_MESSAGE,RP_MATCHES_RCVD,
SPF_HELO_PASS,SPF_PASS,TVD_SPACE_RATIO autolearn=no autolearn_force=no
version=3.4.0
X-Spam-Score: 3.7

To learn more about the terms used in the SpamAssassin report, please search
here: http://wiki.apache.org/spamassassin/

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Explanation of the possible results (adapted from
draft-kucherawy-sender-auth-header-04.txt):
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"pass"  
the message passed the authentication test.

"fail"  
the message failed the authentication test.

"softfail"  
the message failed the authentication test, and the authentication
method has either an explicit or implicit policy which doesn't require  
successful authentication of all messages from that domain.

"neutral"  
the authentication method completed without errors, but was unable
to reach either a positive or a negative result about the message.

"temperror"  
a temporary (recoverable) error occurred attempting to authenticate
the sender; either the process couldn't be completed locally, or  
there was a temporary failure retrieving data required for the
authentication. A later retry may produce a more final result.

"permerror"  
a permanent (unrecoverable) error occurred attempting to
authenticate the sender; either the process couldn't be completed  
locally, or there was a permanent failure retrieving data required
for the authentication.


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Original Email
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