0
votes
1answer
67 views

Server hacked and used for sending spam [duplicate]

Hi I have CentOS server which running mail server. Last 2 days server started to send spam. After doing some research I couldn't solve the issue. Here is portion of statistics from Exim and the ...
0
votes
1answer
67 views

Postfix acting as spam server. Looks like it's part of a botnet, spam messages being sent to customers [duplicate]

Let me first start out by saying I am no mail guru. If you need more info to help me just let me know. This week the mail server has been having all sorts of strange issues. It has been duplicating ...
-1
votes
2answers
263 views

Use postfix and spamassassin packages on CentOS 6 to reject SPAM - without custom users and scripts

Here is what I'm trying at my CentOS 6.5 Linux server: Installed postfix and spamassassin packages Configured Postfix - it works well (I omit details here) Added -x to the SPAMDOPTIONS in ...
0
votes
2answers
103 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 ...
1
vote
3answers
883 views

Mail spam sending script injected

I apologize if this is already asked a million times. One of accounts on my server got hacked. An email spam sending script is injected and sending ton of emails to some random addresses. I have ...
0
votes
1answer
2k 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
1answer
97 views

Possible spam emails from our server but not from our domains

I encountered something weird with my mail server. For about 3 days now I am noticing that my mail server sending emails that aren't included in my domains. There are from different IPs different mail ...
0
votes
1answer
90 views

sendmail injection

I have a server running sendmail. It started sending out tons of spam. I went it, shutdown sendmail cleaned out the queue (removed everything in /var/spool/mqueue). How-ever, as soon as I restart ...
2
votes
2answers
603 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. ...
1
vote
1answer
444 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 ...
1
vote
2answers
814 views

My server is sending spam

I have a dedicated server with CentOS+MySQL installed from godaddy.com. Recently I had some very weird problems: I installed a PHP application which has a thread that queries a MySQL database for ...
0
votes
3answers
5k views

DKIM error: dkim=neutral (bad version) header.i=

Ive been struggling the last couple of hours with setting up DKIM on my Postfix/CentOS 5.3 server. It finally sends and signs the emails, but apparently Google still does not like it. The errors I'm ...