0
votes
1answer
38 views

Plesk 12 Linux Server Mail Spam Issue

I'm running multiple websites on my dedicated server, and for one website in particular where users signup and then must verify their email address, I'm getting reports from my client that a small ...
-2
votes
1answer
66 views

How to find the source of outgoing SPAM emails on my Server [closed]

Hello this is my first time here. I do know a little about linux but I can't seem to find out the source of tons of SPAM emails being sent out on my server. Here is a small portion of the QMAIL ...
0
votes
0answers
38 views

Spam mails from vulnerable wordpress contact form

Recently I receive an e-mail from my server's host about spam mail coming out from my server's ip. I tracked down the problem to a specific site that is hosted on my server, it is a wordpress site and ...
-1
votes
1answer
63 views

Postfix user is not allowed to submit mail

I am running a webserver on debian wheezy with postfix and about 3 months ago I had a major spam problem with one my domains with web21 id. I made a fresh wordpress install and everything and the ...
1
vote
1answer
64 views

what user is sending emails from mailq

I have a debian box with postfix on it. I checked the mailq and I do not understand how to read the mailq. I need to know witch user is used to send this emails. here is a example 0F87797868C ...
2
votes
0answers
197 views

How to stop double-bounce FROM sender in postfix

I am getting huge amount of these in my mail log, and unable to find its originator. What could be the reason? Here is log entry: postfix/cleanup[9626]: 4413082E40: ...
3
votes
4answers
162 views

Spamming from my Linux server

Hi I was wondering if anyone could help. I got a email from my host company that there are some weird traffic coming from my server. A quick look into the log file revealed the sample log below. There ...
0
votes
1answer
119 views

What do I need to be able to send mass SMTP email efficiently? [closed]

I am creating a web application that allows users to send broadcast emails to a list of subscribers. Essentially, it's a mass emailer and autoresponder, like AWeber or Constant Contact or MailChimp. ...
0
votes
2answers
92 views

Postfix spam flood from my network

I have some issues with my postfix server. Recently it started sending spams, but only in my local network, since open relay has been closed, only allow to my network. I've tried a lot of solutions ...
0
votes
1answer
78 views

Reverse dns for web/mail server with single ip

I have a single server with single ip running a web server, mail server and bind (all for a single domain). In my DNS zone file I created A records for www.domain.com, mail.domain.com, ns.domain.com ...
2
votes
1answer
134 views

Iptables rules order

I have following script, which I found somewhere in the Internet, and I modified it a little bit to suit my needs. My question is: If I understood output of iptables-save my iptables rules are ...
1
vote
1answer
269 views

how to block network level mail spammer?

Here is the packet capture of how the attacker is coming to my server and generating Huge amount of spam, i am not able to block it by any means. 220 mta1497.mail.ne1.yahoo.com ESMTP YSmtpProxy ...
0
votes
2answers
1k views

Server compromised. Bounce message contains many email addresses message was not sent to

This is not a dupe. Please read and understand the issue before marking this as a duplicate question that has been answered already. Several customers are reporting bounce messages like the one ...
2
votes
0answers
410 views

Postfix server begins send spam immediately after starting

I've installed a postfix server on a debian os & also I've installed apache 2.0 with php on same machine Several days ago my server begun to send a lot of spam messages via postfix. I understood ...
3
votes
1answer
76 views

Avoid spammers who download content for the sake of using bandwidth

My company has a product which is downloadable through our website. Since day one, we've been continuously spammed by bots trying to download a little bit of content all the time (usually 4 MB out of ...
3
votes
3answers
995 views

Send spam mail to a special folder using postfix

I have a postfix server running amavis and SpamAssassin to help filter spam. Messages that are detected as spam look like this when delivered into the user's Maildir: From tom@tom-mint Fri Mar 15 ...
0
votes
1answer
1k views

Plesk 11 Set firewall rules manually

I have a big spamming problem on my site from ip addresses coming from Asia. My website is designed for people in France and Canada, so I want to block all ip addresses from Asia to avoid spam. I ...
0
votes
0answers
273 views

UID 33 sending SPAM

Please help! On sunday I started receiving a lot of email bounces which I investigated right away and saw someone who hadn't logged in seemed to be using vbulletin's sendmessage.php to send SPAM as ...
0
votes
1answer
153 views

How can i track spam message send from server? [duplicate]

Possible Duplicate: How do I deal with a compromised server? Following message i got from my VPS provider. How can i track this message? How to track sender or script? ...
-3
votes
1answer
91 views

Blocking unsubscribe spam

I have SpamAssassin turned on and using RBL in the WHM control panel using the lists from spamhaus. However, these type of e-mails are getting in. Are there any ways to stop them? Example of the ...
1
vote
1answer
544 views

Log with iptalbes which user is delivering email to port 25

Because we got blacklisted on CBL I set up the following firewall rules with iptables: #!/bin/bash iptables -A OUTPUT -d 127.0.0.1 -p tcp -m tcp --dport 25 -j ACCEPT iptables -A OUTPUT -p tcp -m tcp ...
1
vote
2answers
147 views

Fixing Poor Email

I'm having an issue with SenderBase. My IPs are not blocked in any BLs but people who use SenderBase/Ciscos stuff do not get my emails. Is this because my email system is setup poorly? They list the ...
1
vote
2answers
236 views

Linux command line based spam checker?

Does a command line based spam checker exist? We have created a mailbox at a 3rd party, and unfortunately decided on spam checking 'disabled' in the initial setup. There is no way to re-enable spam ...
2
votes
1answer
444 views

Why Gmail mark as spam emails from my postfix server?

I'm trying to send email from postfix to different providers: Hotmail OK, Yahoo Not tested, Italian Provider OK, GMAIL KO ! I have SPF and rDNS set correctly ... this is the header: Delivered-To: ...
3
votes
1answer
366 views

How did this email bypass my SPF settings?

I received a phishing email this morning that appeared to come from one of my addresses to itself. Looking at the headers, I found something interesting. DomainKey-Status: no signature ...
1
vote
1answer
464 views

How to solve/disable spam sending with my postfix server on linux

I am quite new in setting up e-mail server on linux - I barely set up the whole think to get it working and connected it with my domain and php script which uses PHPMailer 5.2.1. In my setting I am ...
0
votes
1answer
203 views

Making CommuniGate Pro react better on SPAM and Backscatter issues

I would like to make a CGP mail server as SPAM free as possible. I made some research but didn't find so much. So my question: where should I start in order to make CommuniGate dealing better with ...
-1
votes
2answers
90 views

How do I set up a troll raid defense system?

I have a website or perhaps an IRC server or whatever. The server keeps a list of all unique visitors (IP addresses). I have a panic button that, when activated, denies access to all visitors that ...
-1
votes
1answer
217 views

Track spammer Exim

hello i have a exim server , and have a lot of spam last 24 hours , i watch exim_mainlog and see this 1SDcCZ-0005DX-JQ-H mailnull 47 12 <contact@xxxxxxxx.com> 1333115355 0 -helo_name ...
2
votes
4answers
427 views

My datacenter is unable to add PTR/rDNS record, then how can I prevent the mail outgoing from going to spam folder?

I am having problem that mail sent out from my server all goes to recipient's spam folder. I am running Drupal sites on Linux server. CentOS w/ cPanel. Our users cannot receive email as the mail ...
2
votes
2answers
468 views

sendmail is using return-path instead of from address

I have a customer that is complaining about emails marked as spam. I'm looking at the header. It shows the correct From: reg@company.com However, it doesn't like the return-path. Return-Path: ...
1
vote
1answer
95 views

After sending our newsletter out AOL deferrs out email

Hi I hope someone can help, a while ago for some reason AOL has taken upon itself to defer all email from ourselves after we send our newsletter. We get the error code DYN:T1 and then after like 8-12 ...
2
votes
1answer
155 views

Automatically reject any mailman mailing list posts that contain Russian?

I'm running a small mailman-based mailing list on a Linux server, and the only spam posts we seem to get are in russian. They are automatically moderated of course, since they're not subscribed to the ...
4
votes
1answer
2k views

Server Sending Spam?

We have some servers hosting websites and email accounts for clients. Today we found that one of our servers has a very heavy load and by looking at the maillog it is doing a lot of sending to ...
2
votes
1answer
209 views

SMTP Send Queue growing due to possible DHA attack?

GroupWise 8 SLES So.. my email server's send queue is currently at 20,000+ emails and growing. Log files are full of this type of thing: 18:48:14 840 MSG 1401510 Converting message to SMTP: ...
2
votes
3answers
524 views

GeoIP based greylisting with Exim?

I have been using Sendmail together with milter-greylist for many years at several sites. milter-greylist has support for defining greylisting rules based on GeoIP database lookups. This is very ...
0
votes
2answers
182 views

Spam outburst in an Exim server

I have a Linux server running Exim. Some user is sending spam. I can tell this because almost every 24 hours I'm getting a huge number of undelivered mail in the nobody account. I can see how the ...
2
votes
2answers
555 views

Has this server been compromised?

A friend is running a VPS (CentOS) His business partner was the sysadmin but has left him high and dry to look after the system. So, I've been asked to help out in fixing an apparent spam problem. ...
2
votes
2answers
1k views

Delete from mailq where subject matches

I have a mailq which is getting backed up with multiple emails with the same subject line. I would like to delete all emails in the mailq that match a particular subject line so they don't get sent. ...
1
vote
1answer
421 views

postfix before-queue spamfilter with spampd proxy

I've configured postfix with spamassassin. master.conf is as following. spamfilter unix - n n - - pipe flags=Rq user=spamfilter argv=/usr/local/bin/spamfilter -f ${sender} -- ${recipient} smtp ...
2
votes
1answer
47 views

Spam filtering in bridging

I'm using sendmail with spamassasin, one of my server is working behind it. All the port 25 traffic for the server behind it is being filtered. User are using SMTP authentication enabled in ...
0
votes
1answer
144 views

problem after upgrading perl

I've upgraded perl which is install in /usr/local/lib/perl5/...... Previously old version of perl was installed in /usr/lib/perl5/ Now when i installed spamassasin its locating for the old location ...
0
votes
1answer
137 views

email spam filering in bridging

I've a mail server, which handle multiple domains. Due to concern of spam and mail server performance. I've configured another machine which will be in bridging and mail server would be behind that ...
1
vote
2answers
231 views

My dedicated ip address is blacklist for spam email sending

My question is that How can I know that which client's computer is infected? so that I can block him. I am running more than 300 websites on that server. that is really ruining the business. Could ...
1
vote
1answer
90 views

How do I set up an email server that automatically maintains a list of previous recipients?

I want to set up an email server with the following characteristics. What software (besides bogofilter and clamav that I'm naming) should I use and what HOWTOs should I read? The server should run ...
2
votes
3answers
1k views

Can any postfix guru assist me determine how emails are still being sent via my server from unauthorized sources?

I'm getting a little concerned as I run a small server hosting a number of websites and manage the email for a few dozen people. Just recently though I've had a couple of notifications from spamcop ...
3
votes
3answers
1k views

Sign multiple domains with single Domain Key (dk-filter)

Motivation The private shopping website GILT, send periodical update emails from giltgroupe.bounce.ed10.net however all of the mails are signed with domain keys of giltgroupe.com. mailed-by ...
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, ...
5
votes
4answers
2k views

How to send 100,000 emails weekly and avoid being considered spammer

I have a mailing list with 100,000 email addresses, and I have to send it an email weekly. What application/program/webapp/script/etc do I have to use to send 100,000 emails weekly and avoid being ...
1
vote
3answers
327 views

Blocking a distributed, consistent spam attack? Could it be something more serious?

I will do my best to try and explain this as it's strange and confusing to me. I posted a little while ago about a sustained spike in mysql queries on a VPS I had recently setup. It turned out to be a ...