When I run spamc without -R option like this:
spamc -u some_user < some_email
I get the following output:
============================================================================
<HEADERS>
This is a multi-part message in MIME format.
<snip>
Content analysis details: (5.2 points, 5.0 required)
pts rule name description
---- ----------------------
--------------------------------------------------
0.2 BAYES_999 BODY: Bayes spam probability is 99.9 to 100%
[score: 1.0000]
3.5 BAYES_99 BODY: Bayes spam probability is 99 to 100%
[score: 1.0000]
0.7 SPF_SOFTFAIL SPF: sender does not match SPF record
(softfail)
-0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at
https://www.dnswl.org/,
low trust
[69.252.207.38 listed in list.dnswl.org]
-0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2)
[69.252.207.38 listed in wl.mailspike.net]
1.6 DATE_IN_PAST_03_06 Date: is 3 to 6 hours before Received: date
0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record
0.0 HTML_IMAGE_RATIO_02 BODY: HTML has a low ratio of text to image
area
0.0 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_VALID Message has at least one valid DKIM or DK
signature
0.1 DKIM_SIGNED Message has a DKIM or DK signature, not
necessarily
<EMAIL BODY>
===============================================================================
However, when I run this command on the same email with the -R command
to get the SA scores only like this:
spamc -R -u some_user < some_email
I get this output:
===============================================================================
2.6/5.0
Spam detection software, running on the system "email.dondley.com",
has NOT identified this incoming email as spam. The original
message has been attached to this so you can view it or label
similar future email. If you have any questions, see
the administrator of that system for details.
Content preview: Spam detection software, running on the system
"email.dondley.com",
has identified this incoming email as possible spam. The original
message
has been attached to this so you can view it or label simi [...]
Content analysis details: (2.6 points, 5.0 required)
pts rule name description
---- ----------------------
--------------------------------------------------
0.8 BAYES_50 BODY: Bayes spam probability is 40 to 60%
[score: 0.5000]
-0.0 NO_RELAYS Informational: message was not relayed via
SMTP
0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level
mail domains are different
1.6 DATE_IN_PAST_03_06 Date: is 3 to 6 hours before Received: date
0.0 HTML_MESSAGE BODY: HTML included in message
0.0 HTML_IMAGE_RATIO_02 BODY: HTML has a low ratio of text to image
area
================================================================================
Notice the scores are totally different. According to man page, -R says:
Just output the SpamAssassin report text to stdout, for all messages.
See -r for details of the output format used.
So why are the scores different with and without the -R option?
