0
votes
1answer
292 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 ...
1
vote
1answer
271 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 ...
0
votes
1answer
599 views

How to re-create Qmail queue

Qmail has 500 00 messages in queue and I installed qmHandle to help sort out the spam in the queue. This process has taken a long time and alternative scripts like qmail-remove also take time. I want ...
1
vote
0answers
141 views

How do I use qmqtool to list emails from a specific envelope sender?

Occassionally a user's email password will become compromised and the spammer will flood the Qmail queue with 10,000+ emails sent through a specific user's account. I know how to use qmqtool to remove ...
3
votes
1answer
368 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
434 views

Recommendations needed on building an outbound relay spam filter

I've got a handful of Plesk machines of various versions and operating systems, each hosting mail as well as web sites. Anyone who has dealt with Plesk knows that it can be pain to keep locked down. ...
2
votes
6answers
4k views

how to track down a spamming script?

My server sent 83,000 spam emails last night, I've been trying to track down the culprit, but I'm not sure how to find out exactly. in the logs the "from" address is always something like @#! the ...
3
votes
2answers
437 views

Is someone using my mail?

I found a whole bunch of this in my maillog (after my site went down from excessive resource usage): Dec 3 05:24:23 mysite qmail-queue-handlers[24524]: from=anonymous@mysite.com Dec 3 05:24:23 ...
0
votes
1answer
293 views

how to know that whether qmail is being used as spam sending trojan or proxy

how to know that whether my qmail is being used as spam sending trojan or proxy in CBL Lookup Utility i get following message: IP Address is listed in the CBL. It appears to be infected with ...
0
votes
3answers
930 views

My system is sending spam, where to start fixing it?

One of my smaller webservers appears to be sending out spam. It is a Ubuntu 8.04 system with Plesk as a configutation interface and qmail as the mailserver. How to I go about identifying the ...
0
votes
2answers
459 views

Qmail & Open Relay on local domains

I have a dedicated server on 1&1 and I manage it with Plesk. The problem is that if I try to send a mail outside the server, I must to authenticate with the email and the password, but if I send ...
0
votes
1answer
238 views

Qmail Spam I think someone is injecting mail or gained access to a pop account

I don't know how to detect if qmail has been hijacked I looked and saw a bunch of Dec 23 14:10:57 qmail: 1261606257.101924 starting delivery 36: msg 8423008 to remote ysacy2966@prima.net.ar Dec 23 ...
0
votes
3answers
2k views

How to identify how our qmail queue is so big and how to deal with it

Some how our server is being over run by outgoing emails, which we think are spam. We normally use plesk to administer it but it is currently crashing. If we do a ps aux | grep 'qmail' We get ...
1
vote
3answers
599 views

setup qmail, but messages are in spam folder when i test with gmail

I've just setup djbdns and qmail on a debian lenny server. I test sending to my gmail account with qmail-inject, the mail gets there but is in the spam folder. How can I fix this?