I have a small postfix/amavis/dovecot mailserver for my home network.
Mails are retrieved with fetchmail and delivered to postfix with amavis
as a after-queue content filter. It works great, except that after the
upgrade from Ubuntu 7.04 (Feisty Fawn) to 7.10 (Gutsy Gibbon), amavis
assigns very low spamcores.
An example from amavis:
X-Spam-Score: 2.644
X-Spam-Level: **
X-Spam-Status: No, score=2.644 tagged_above=-999 required=5
tests=[BAYES_50=0.001, HTML_MESSAGE=0.001, MIME_HTML_ONLY=1.457,
SARE_SUB_CASINO=0.555, US_DOLLARS_3=0.63]
When I remove all headers generated by my mailserver, and pass the
message through spamassassin (with "spamassassin -t < spam.eml"), I get
a much higher score:
X-Spam-Flag: YES
X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on
manta.localdomain.local
X-Spam-Level: *****************
X-Spam-Status: Yes, score=17.7 required=5.0 tests=DNS_FROM_RFC_DSN,
HTML_MESSAGE,MIME_HTML_ONLY,RCVD_IN_BL_SPAMCOP_NET,RCVD_IN_NJABL_PROXY,
SARE_SUB_CASINO,URIBL_BLACK,URIBL_JP_SURBL,URIBL_OB_SURBL,URIBL_RHS_DOB,
US_DOLLARS_3 autolearn=spam version=3.2.3
pts rule name
---- ----------------------
0.6 SARE_SUB_CASINO
1.7 RCVD_IN_NJABL_PROXY
2.2 RCVD_IN_BL_SPAMCOP_NET
2.5 DNS_FROM_RFC_DSN
1.2 US_DOLLARS_3
0.0 HTML_MESSAGE
1.7 MIME_HTML_ONLY
2.9 URIBL_JP_SURBL
2.1 URIBL_OB_SURBL
2.0 URIBL_BLACK
0.9 URIBL_RHS_DOB
If I restart amavis, the spamscore is already much higher for the same
message (send with "sendmail user < spam.eml"), especially if the high
negative AWL score is ignored:
X-Quarantine-ID: <qQEc9Gutw-4P>
X-Spam-Flag: YES
X-Spam-Score: 8.12
X-Spam-Level: ********
X-Spam-Status: Yes, score=8.12 tagged_above=-999 required=5
tests=[AWL=-5.476,
BAYES_40=-0.185, DNS_FROM_RFC_DSN=1.495, HTML_MESSAGE=0.001,
MIME_HTML_ONLY=1.457, RCVD_IN_BL_SPAMCOP_NET=1.96,
RCVD_IN_NJABL_PROXY=1.643, SARE_SUB_CASINO=0.555, URIBL_BLACK=1.955,
URIBL_JP_SURBL=1.501, URIBL_OB_SURBL=1.5, URIBL_RHS_DOB=1.083,
US_DOLLARS_3=0.63]
I understand that there might be some differences between amavis and my
spamassassin test, because they did run with a different user, but I
think something else is wrong here. It seems that network test are only
performed if amavis is restarted in the second try. Since all settings
are unchanged, what could be causing this and how do I fix this? I can
provide additional information, but didn't know what to provide already.
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