9
votes
2answers
644 views

How can I reduce the damage of stolen mail accounts?

Currently I’m offering some webhosting to a few advertising agencies for their premium customers. But currently I have a great problem with the E-Mail Service. In the last week, the E-Mail Accounts of ...
2
votes
0answers
22 views

Restrict IMAP access for a given account to only one IP address in Exchange 2013

I've created a "spam crawler" account with full access to all mailboxes in an Exchange 2013 environment to get messages in the junk folder to feed the Bayesian filtering running on SpamAssassin in a ...
1
vote
0answers
13 views

How to check why SpamAssasin Bayes filter not working?

I have exim 4.77 with spamassasin 3.4.0 on Debian, I identify spams by myself and send to sa-learn, which seems working. But I have never receive spamscore by Bayes, I check the emails which ...
3
votes
0answers
42 views

Is there a way to get spamassassin to score the top lines of a message body more heavily?

A lot of spam is getting through the filter on the mail server I run with the relatively simple trick of starting with few lines of (incredibly obvious) weight loss or other scam text at the top, ...
0
votes
2answers
39 views

Efficient way to get Postfix talk to SpamAssassin

Traditional methods of doing this on SA wiki talk about shell scripts as content filters. Well that's an additional fork syscall on every email and the volume that will flow through the machine is ...
0
votes
0answers
49 views

SpamAssassin keeps crashing during cleanup of child pid due to SIGCHLD: interrupted, signal 2 (0002)

I am running SpamAssassin on an Ubuntu Server with a quad-core processor and 7.5GB RAM. I am running a Mail Server on a separate Windows Machine and this Mail Server passes messages to the ...
0
votes
0answers
78 views

Amavis log clean passed mails to mail.log

I use amavis on my Ubuntu host to scan emails for spam. Unfortunately amavis log all clean passed mails to the 'mail.err' and the 'mail.log'. How to prevent the 'mail.err' logging? mail.err example ...
0
votes
1answer
93 views

Same email is evaluated as a spam for one user, and regular for the other

I have mail server, with installed spamassassin to filter spam messages. Problem I faced is that at 02h first user received email that is treated as a spam (and is was a real spam, moved to spam ...
0
votes
0answers
43 views

Spamassassin internal DNS resolution?

Short Version: Is it possible to configure spamassassin to perform its own recursive DNS lookups instead of using the server specified by the OS? Long Version: I've got a collection of dedicated ...
0
votes
1answer
290 views

plesk qmail spamassassin scan outbound email

We have a dedicated server running Plesk 9.5.4 (yes I know that's old) with Qmail as the MTA and Spamassassin and Spamdyke installed. Spamdyke works a treat for blocking inbound mail based on rDNS ...
0
votes
2answers
80 views

Do email spam detection block domains?

Does email (like gmail, yahoo, hotmail) providers block domains? Or do they mainly block IP addresses? I'm wondering...what if people use my domain to spam others? Then it would be unfair to me ...
-1
votes
1answer
36 views

SpamAssassin: Spending responsability for user blocks

Currently 99% of my clients have their sites on hosts that use CPanel. In CPanel, there is available tool SpamAssassin (spam filter), where I manage the blocks of my clients, adding addresses to the ...
1
vote
2answers
418 views

Configuring Postfix, Spamassassin and Procmail to put spam in a dedicated folder

I'm not sure if SF is the good place for that, so sorry if it's not the case. I'm administrating a Debian server for our company's emails and I'm trying to have the emails flagged as spam by ...
0
votes
1answer
225 views

Our outgoing emails from a shared hosting provider (Bluehost) are returned because the server is listed as SPAM SERVERS

I am getting very frustrated with this web hosting provider -- Bluehost.com. We have several small business sites hosted with them. We also use email accounts provided by the Bluehost for our outgoing ...
0
votes
1answer
587 views

Why does SpamAssasin mark emails as SPAM due to RCVD_IN_PBL RBL?

My email is being marked as SPAM by SpamAssasin. The problem is score 3.3 (among others): 3.3 RCVD_IN_PBL RBL: Received via a relay in Spamhaus PBL * [212.95.7.48 listed in zen.spamhaus.org] I ...
1
vote
1answer
354 views

E-mail address spoofing by spammers - how to block it in Postfix/Spamassassin?

I run a Postfix mail server using Spamassassin as after-queue filter. It works quite well, but sometimes I get spam from the network that has correct MAIL FROM: address, but also contains, in DATA: ...
1
vote
1answer
77 views

How to whitelist a domain while blocking forgeries using that domain?

How do you deal with the case of: wanting to whitelist a domain so that emails from it won't get eaten, but not having emails forged to appear to be from that domain get bogusly whitelisted ...
0
votes
2answers
120 views

DNS: MX listing points to google apps and A listing to my own server. Can I send emails from my own server without being classified as spam?

Linux DNS networking question: If an MX record points to IP address 111.111.111.111 and A record of a domain points to 222.222.222.222, can I still send emails from 222.222.222.222 on the behalf of a ...
0
votes
2answers
562 views

SpamAssassin sending legit emails to spam, despite sender being whitelist

I can not for the life of me figure out why emails from a "white-listed" sender are still getting very high scores from SpamAssassin and not being delivered. The email headers are: From ...
0
votes
1answer
913 views

Any way I can send Spam to my mail perimeter in a controlled way for testing?

I just set up a Postfix/Procmail/SpamAssassin server but I am not convinced that it is really doing much filtering. I have gotten it to recognize the SpamAssassin special Spam code that produces a ...
3
votes
1answer
888 views

Spamassassin? update channels?

I know this was asked here: but things seem to have changed. It appears that the old SARE rules are listed as broken The recommended SOUGHT channels seem to be down and DNS is broken for ...
0
votes
2answers
814 views

In Exim, is RBL spam rejected prior to being scanned by SpamAssassin?

I've recently been battling spam issues on our mail server. One account in particular was getting hammered with incoming spam. SpamAssassin's memory use is one of our concerns. What I've done is ...
0
votes
2answers
309 views

Spamassassin/Exim (incorrectly) blocking mail from localhost as spam

On our server we've got a problem with spamassassin/exim4 blocking email from our mailing list software as spam. This because (usually) the headers the software (ecartis) adds add points to make it go ...
1
vote
1answer
2k views

Mailscanner and amavisd-new comparison

I'm going to implement a mailfiltering gateway for my company. I'm going to use Postfix, with a PostgreSQL back-end. The question would be: how to best implement the antispam measures. Mailscanner ...
0
votes
1answer
686 views

Webmin/ SpamAssassin doesn't appear to be 'learning' from forwarded examples of spam

I have spamtrap@ and hamtrap@ addresses set up on my mail server and forward examples of spam to the spamtrap address. I was hoping that after a few examples, SpamAssassin would 'learn' to identify ...
0
votes
1answer
78 views

Lower SpamAssassin scores when certificate verification fails

I’ve noticed that I’m getting junk mail from Norwegian companies that send from servers that Postfix says failed certificate verification. Is it possible to give these messages a lower spam score with ...
0
votes
1answer
371 views

Processing items with SpamAssassin and sa-learn

I have been working on getting SpamAssassin up and running for awhile now and am pretty close to being finished. However, there is one last thing that is grinding away at me that I can't seem to ...
-2
votes
1answer
195 views

Spamassassin AWL: From: address is in the auto white-list

I am not sure what does this flag means in Spamassassin score checking? My test returned "1 of 5" and mentioned this: 1.0 AWL AWL: From: address is in the auto white-list
1
vote
1answer
225 views

Tell Postfix not to deliver mail when SpamAssassin isn't running

I have Postfix configured to filter mail using the SpamAssassin spamd daemon. I noticed recently that some spam messages would be delivered to my inbox with no SpamAssassin headers added. I tracked ...
0
votes
0answers
56 views

SpamAssassin custom rules

Is it possible to create a custom rule for spamassassin to stop spam based on the total number of recipients in the mail? Thanks
2
votes
5answers
4k views

Open Source or lower-cost alternatives to Barracuda Spam Filter

I'm aware of SpamAssassin-based solutions, but I'm looking for a free or low(er) cost spam filtering solution that's similar in functionality to the Barracuda Spam Filter. The Barracuda works well, ...
4
votes
1answer
521 views

How to stop backscatter email spam

I know I can't do anything about people spoofing my email address, but what can I do about all those annoying bounce-mails? I get 5-10 "Undeliverable mail" a day, but I don't know how I can filter ...
0
votes
2answers
383 views

spamassassin with sendmail: spamass-milter or spampd?

I want to integrate my sendmail MTA (relaying only, no local mailboxes) with spamassassin. Sendmail box sits between internal MS Exchange server and internet. So, I see two options for doing this (or ...
0
votes
1answer
270 views

How to solve the problem RCVD_BY_IP “Received by mail server with no name”

I'm using MailingCheck to calculate the spam score of my e-mail messages. There is one problem bugging me that i don't know how to solve. RCVD_BY_IP "Received by mail server with no name" It ...
1
vote
1answer
577 views

New Job Offers Spam - Defeats SpamAssassin

For the last month or so I've noticed a shift in spam content. Basically still getting a lot of it but there's a new focus on fake jobs offers. They all look the same, all take to a fake Seek.com ...
5
votes
5answers
4k views

Is there any alternative to SpamAssassin? [closed]

I'm looking for alternative to spamassassin. Anyone tried rspamd from Rambler.ru (https://bitbucket.org/vstakhov/rspamd/wiki/Home)?
0
votes
1answer
171 views

Mails received with same message id every 15 - 20 seconds

I have SpamAssassin integrated on my postfix mail server via 'Amavisd-new'. The problem that I am facing is that I am receiving same email every 15 second from same sender with same message-ID on my ...
1
vote
2answers
114 views

How do I learn the in's and outs of email, spam, and exim

I recently got a new job, and realize that I'm way to ignorant on mail troubleshooting. How do you recommend learning how to read email headers, mail logs, and troubleshoot various mail problems? any ...
9
votes
10answers
2k views

Using fake MX records to combat spam

I have a client that is getting heavily spammed.. it's the 15th of the month and POP3 bandwidth is almost 100 GB (yes GB..lol!) there are only 7 e-mail account on this domain. I installed SpamAssassin ...
0
votes
3answers
387 views

Web frontend to spamassassin for service providers?

I would like a frontend to spamassassin/amavis (or alike) which can let customers manage their own domains/settings. I do not look for hosted services. I do not mind licensing fees, but I do like open ...
1
vote
3answers
587 views

how to stop outgoing email spam

running an email system using roundcube, with about 200 people using it. 99% of them do as they are told and only email clients they have already spoken to, however 1% of them decide to bulk spam bcc ...
0
votes
1answer
292 views

All messages being tagged NO_DNS_FOR_FROM on Zimbra server

On our Zimbra 6.0.5 server running on Fedora 6, it seems that all messages are being tagged by spamassassin with NO_DNS_FOR_FROM (despite having legitimate sent addresses). How should I debug this? ...
-1
votes
3answers
160 views

SpamAssassin: Message is 20% to 30% HTML

SpamAssassin is flagging my e-mails as HTML_20_30 - 'Message is 20% to 30% HTML' What exactly does this message mean and how can I make it go away?
0
votes
2answers
341 views

spamassassin attachment scanning

I have just started using spamassassin for my email server. I am unable to find an answer for following questions: Does spamassassin scans attachments? If not, what plugins can be used for the ...
0
votes
3answers
558 views

How to make spamassasin reject mail based on score?

I am running linux with postfix, dovcot, postgrey and spamassasin/spamd. This is my main.cf smtpd_recipient_restrictions = permit_sasl_authenticated, ...
0
votes
1answer
80 views

Spamassassin not work

I set the threshold to 7.5. But this mail still can't work thought will auto spam. Any idea? Thanks. X-Spam-Flag: YES X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on X-Spam-Level: * ...
1
vote
1answer
807 views

why my mails from zimbra server to yahoo goes in to spam folder

I just configured zimbra mail server but mail from my zimbra to yahoo, hotmail etc going into there spam folder any suggestion??? bellow is header part from yahoo of that mail X-DSPAM-Result: ...
0
votes
2answers
337 views

Spamassassin one-liner to tag & move mail with an X-Spam-Flag: YES to a new directory?

Say you have a directory with tens of thousands of messages in it. And you want to separate the spam from the non-spam. Specifically, you would like to: Run spamassassin against the directory, ...
5
votes
1answer
1k views

Stop Outgoing Spam Already Tagged as Spam

I run a Postfix server with Amavis and Spamassassin among other things. Postfix receives mail from the outside world and passes it on to Amavis. Amavis has Spamassassin rate the mail, and then tags it ...
5
votes
2answers
865 views

Workaround SpamAssassin Y2K10 Bug (Mac OS X Server)

Bug Report: https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6269 It turns out that SpamAssassin is adding a score of 3.2 (FH_DATE_PAST_20XX) to all email going through my mail server (Mac OS X ...