All Questions
Tagged with spam spamassassin
121
questions
0
votes
0
answers
7
views
Why does the SpamAssassin not insert some headers?
Trying to configure SpamAssassin 4.0.0 with Postfix 3.7.10 on Debian 12. I'm using spamass-milter 0.4.0. My /etc/spamassasin/local.cf has the following entries:
required_score 5.1
...
- 1
0
votes
1
answer
397
views
Where can i find explanation of a SpamAssasin scores like SPOOFED_FREEMAIL?
I can define custom scores for SpamAssasin, default one seems to be zero and it makes me wonder if i should raise it, but before doing so, where can i find detailed information on how these particular ...
- 536
0
votes
0
answers
79
views
Multi-message anti-SPAM filter in SpamAssassin
My vendor's database has been stolen and I started to receive spam messages in a huge amount. It is being sent by spambots / spam scripts, so sender and recipient email addresses are always fake. The ...
- 163
0
votes
1
answer
691
views
Spamassassin not scoring correctly
I have Spamassassin running on a Ubuntu/Plesk server. It was working relatively well until recently but now seems to be letting through random spam messages.
These messages seem to trigger plenty of ...
1
vote
0
answers
108
views
spamassasin unable to read Japanese when it is html encoded
I would like to block some emails which contains certain Japanese words, but spamassassin fails to detect such words when the email is HTML encoded, for example:
This is a multi-part message in MIME ...
- 469
5
votes
1
answer
569
views
How to match Japanese in spamassassin?
I live in Japan. Recently there has been a lot of spam coming from China with messages written in Chinese. As spamassassin does not contain rules for Chinese, most of those emails pass with low score.
...
- 469
0
votes
1
answer
152
views
Compare url link and url text in email body and reject as SPAM
Email body:
... <a href="url">text</a> ...
Is it possible check if text is url in email body, then compare url and text and reject as SPAM if they differ?
0
votes
1
answer
778
views
Postfix: How to malware & spam scan outgoing SMTP SASL auth users?
Although I have found two answers to this, I can't work out how to actually implement them, and at least one of them doesn't actually answer the question. So if anyone has any experience to share I'd ...
- 507
3
votes
1
answer
2k
views
Spamassassin working but not learning? Bayes-filter accuracy is not improving
I have a mailserver with a working spamassassin installation (postfix, dovecot, amavis, clamav, spamassassin on debian).
Everything is working great. Spamassassin is filting out Spams and I get the ...
- 31
1
vote
0
answers
239
views
Spamassassin keeps marking as spam despite low score
I have postfix with Spamassassin and spamass-milter configured.
E-mails with score higher than 4.0 are supposed to be treated as a spam and be rejected.
Here is my local.conf
rewrite_header Subject ***...
- 11
0
votes
1
answer
472
views
How to address spam bounce on exceeded quota issue?
I'm investigating a mail server blacklist issue.
Our mail server had a user over quota, which resulted in emails being bounced back to senders with a"user over quota" message. Some of these ...
- 645
1
vote
1
answer
764
views
Spamassasin rule to flag certain MX IPs
I've noticed a flood of spam that is related to the same range of IPs.
All the spam email has different HTML text (which is english but meaningless) and a few embedded pictures (which I block) but ...
- 398
1
vote
1
answer
1k
views
how to reject emails with specific subject on Mail server postfix spamassassin?
I have postfix and spamassassin. recently I found an email with subject "XXX" to all company email addresses and aliases.
So I was wondering if I can reject sending emails with specific subject "XXX" ...
- 21
1
vote
1
answer
2k
views
I have set up Spamassassin. Only outgoing emails are scanned by spamassassin and not incoming ones
I have set up spamassassin with postfix. The problem is I tried testing the spamassassin default filter by sending the GTUBE spam test email from gmail to my mail server. Spamassassin is not even ...
- 149
0
votes
2
answers
2k
views
How to REJECT email using SpamAssassin
Is it possible to reject emails, like it is done in Postfix using header_checks, using SpamAssassin? Normally, the SpamAssassin only adds the spam flags and by default adds the word SPAM in the ...
- 179
1
vote
0
answers
121
views
A SpamAssassin filter for empty HTML part
A new kind of spam's been getting through my defenses lately with the following common characteristics:
The message itself is of type multipart/mixed with two parts.
The body of the spam is in the ...
- 2,411
0
votes
1
answer
913
views
How do I teach spam and ham to spamassassin running in a docker container?
I'm running SpamAssassin as a milter in a Docker container separate from Postfix and Dovecot. Postfix and SA work together nicely, Postfix connects to spamass-milter, SA does its thing, mail gets ...
- 279
0
votes
1
answer
145
views
access SpamAssassin SpamBox from command line
I am trying to create a CRONjob to delete spam older than x days. I can do this from the command line with non-spam emails by using the following script:
find "/home/account/mail/example.com/username/...
- 165
0
votes
0
answers
251
views
Dovecot SpamAssassin results different than standalone
I'm trying to filter spam with smtpd, spampd, dovecot, and SpamAssassin, and I'm finding different results of a spam email between the X-Spam-Report added by spampd/dovecot (which scores low) versus a ...
- 225
0
votes
1
answer
1k
views
filtering spam emails with Chinese subject
A client have ton of Chinese spam. All look similar to this one:
Return-Path: <[email protected]>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
hotel492.dedicatedpanel.com
X-...
- 882
7
votes
1
answer
4k
views
Why would Spamhaus continue to add an IP to the CSS when that IP hasn't sent email recently?
For the last six months I have been locked in battle with the Spamhaus CSS SBL, having to regularly check if the IPv6 address of my Exim4 server has been listed and, if it has, manually delisting it. ...
- 201
1
vote
1
answer
1k
views
Zimbra with multiple domains - SPAM
I have a zimbra installed and working fine. The main domain is mbox.dominiocorp.com.br (fictitious).. I have SPF, DKIM, _dmarc, reverse configured and tested. The emails of the domain mbox.dominiocorp....
- 31
0
votes
0
answers
357
views
Spamassasin / Mailscanner - "learn better"
Specs:
debian 8
spamassassin 3.4.1
MailScanner 5.0.3
We have some mailservers which (auto and manually) learn via sa-learn from different hosting-servers.
Spam will mostly get tagged and moved to ...
- 215
0
votes
1
answer
86
views
Postfix: Recieving mails that are not for my domains
we are using postfix/dovecot/amavis/spamassassin configuration with custom SA rules, etc.
But some weird mails are delivered to us, even without spam test headers and dkim tests
Example header:
...
- 1
3
votes
1
answer
762
views
Blacklist recipient email addresses
I have a mail server on Ubuntu using Postfix and Dovecot and SpamAssassin. In Postfix I am using "plus addressing" via the recipient_delimiter option. So, for example [email protected] and foo_stupid@...
- 563
2
votes
1
answer
2k
views
Arch Linux: Dovecot Sieve Script Won’t Compile
Arch Linux
Linux kernel 4.9.36 (64-bit)
Dovecot 2.2.31 (65cde28)
SpamAssassin version 3.4.1 running on Perl version 5.26.0
Pigeonhole 0.4.19-1
Trying to set up a mail server for the firs by following ...
- 255
1
vote
1
answer
250
views
Mailcleaner new beta installation problems
I have installed the mailcleaner beta 2017.04 and I have a few problems here :
1) I get a message via email every 5 minutes with this error :
"Invalid graph type: none at /usr/local/share/perl/5.20....
- 13
0
votes
2
answers
4k
views
Zimbra learning Spam
We are using a Zimbra intallation on the version 8.6.0 and have diffuclty with the Spam recognition. It's an installation all on one single server and we collected in the mean time over 1000 Spam ...
- 11
0
votes
1
answer
79
views
Some Users receiving more junk spam mail
To start: we are using exchange 2010 with spam assassin.
Some of our users are experiencing a rise in junk spam emails for about two weeks now. Most of these junk emails even get to the normal inbox ...
- 87
0
votes
2
answers
8k
views
spamassassin has false-positives with emails originating from dialup addresses
I'm mostly a happy admin of spamassassin (3.4.0-6) + exim4 (4.84.2), setup for server-side spam-filtering on a Debian/jessie system.
Recently a user reported some false positives.
On closer ...
- 519
1
vote
1
answer
815
views
SpamAssassin scores are oddly low + different from manual analysis, causing nearly all spam to go through
I'm having issues with SpamAssassin; it's assigning emails scores that are way lower than it should. In addition, the scores it's assigning as emails come in are different from the results of running ...
- 111
5
votes
1
answer
174
views
Blocking, filtering or reducing "tabloid" spam (emails that bypass Spam Assasin)?
In the past few weeks, we've been hit hard by a new class of spam email (or at least new to me/us). I'm calling it "tabloid spam" because they send supermarket-tabloid headlines with tabloid copy, ...
- 4,646
1
vote
1
answer
65
views
Does sending out spam rejections contribute to being labeled a spammer?
If someone sends me spam, with a from/return say gmail address, and my spam software attempts to return it after rejecting it - will gmail not see my server as spammer it self? I ask because it seems ...
- 13
0
votes
1
answer
2k
views
X-Ham-Report is confusing users
Exchange users are getting the X-Ham-Report:
Spam detection software, running on the system "fooserver", has identified
this incoming email as possible spam. THe original message has been
attached ...
- 348
1
vote
0
answers
65
views
Postfix, SpamAssasin force delivery of false positives on incoming e-mail
I'm using Postfix 2.11.3 and SpamAssasin version 3.4.0 to handle e-mail for a domain. I have several incoming messages that are marked as spam and that ended up in the hold queue.
I inspected by hand ...
- 111
1
vote
1
answer
3k
views
How to configure an email server so that outgoing emails are not classified as spam [duplicate]
How to configure an email server so that outgoing emails are not classified as spam? I've spent the entire day on this and I'm puzzled by the results I'm getting.
Among other things, I have:
Added ...
- 119
0
votes
1
answer
896
views
Postfix server and SPAM: forward messages to gmail to detect SPAM [closed]
I have got a private server running postfix, spam-assassing, dovecot, sieve... a common deployment on a linux server, but my SPAM filter doesn't work very well, because my client "set" is reduced and ...
- 499
4
votes
1
answer
4k
views
SpamAssassin sendmail permission denied with Postfix
My server worked, but I installed SpamAssassin using a tutorial from Digital Ocean.
Here is my /etc/default/spamassassin:
# /etc/default/spamassassin
# Duncan Findlay
# WARNING: please read README....
- 55
1
vote
1
answer
540
views
Email tagged as SPAM
I'm making a mail-list with Mailman on Ubuntu Server.
The main domain of my server is DOMAIN1.FR, but my mail-list is [email protected].
I think I've made all things to do but my emails are tagged as ...
- 11
0
votes
1
answer
505
views
Spamassassin letting spam in only for 1 account
I have a hosted email service with Spamassassin running. We are using a site-wide bayes filter. We have 20 users. Email filtering works fine for all of the users, except 1 email address. This user ...
9
votes
1
answer
15k
views
SpamAssassin: avoid FREEMAIL_REPLYTO on Contact Form
Suppose: someone fills out my contact form on www.example.com/contact/.
My server-side script sends this information to a sales person at the organization.
To make SPF work, I set the "From" as ...
- 191
0
votes
1
answer
708
views
How do I tweak spamassassin scores on Ubuntu Server?
I'm wondering what's the right way to tweak scores for Spamassassin's builtin rules.
I know how to edit /var/lib/spamassassin/3.004000/updates_spamassassin_org/ but that doesn't feel right - my ...
- 339
16
votes
3
answers
8k
views
Is SRS rewriting absolutely necessary for a forwarding mailserver?
I am operating a Postfix email server for my domain, say mydomain.com. It mostly acts as a forwarding email server: users receive an email address @mydomain.com, but usually elect to have their ...
- 255
1
vote
1
answer
194
views
Postfix: reject mail, but still deliver or archive in a folder for spam analysis
I'm using Postfix and Spamassassin, and Postfix is rejecting incoming mail that fall into spam rules. Mail are then forwarded to different relays based on many factors.
Is there a way to archive ...
- 176
2
votes
1
answer
1k
views
spamassassin how to remove explanation and score breakdown in the message?
I have setup SpamAssassin in Windows (using the JamSoftware), created a service for spamd.exe and currently SpamAssassin works fine. However, I would like to disable the explanation that SpamAssassin ...
- 1,187
-1
votes
1
answer
254
views
How to improve spam protection using postfix? [duplicate]
I try to improve the spam protection of my postfix install for several weeks now, but I still receive spam.
What I've done so far:
Added SpamAssassin
Added SPF record
Tuned rejection rules
Now I'm ...
3
votes
2
answers
963
views
Dealing with spam flood in Postfix + Amavis
I run a mail server for several thousand users. It uses Postfix + Amavis (with SpamAssassin + Clam).
Most of the time it's a pretty happy setup, but from time to time we receive a flood of virus/...
- 31
0
votes
0
answers
295
views
Postfix, procmailrc, SpamAssassin letting some but not all spam messages through
I have postfix running on my server with a main.cf as follwos:-
myorigin = $mydomain
inet_interfaces = 213.229.80.33, 127.0.0.1
mydestination = 213.229.80.33, corunna.com, localhost, corunnasystems....
- 149
1
vote
1
answer
752
views
exim: How to reject spam mail depending on destination domain
Currently, I have exim set up to mark spam mail, and reject spam mail with high scores, using these ACL instructions in the acl_smtp_data ACL:
warn condition = ${if <{$message_size}{500000}{1}{...
- 4,049
2
votes
1
answer
88
views
Will spamassassin’s bayes filter work if learned spam mails have *SPAM* in the subject?
When my mail setup detects that a mail is spam, it puts *SPAM* in the subject. Now I want to improve my bayes filter by training it on my corpus of spam.
If I feed these thousands of mails to sa-...
- 4,049