how to defend from spam mail, actually i used centos. i want to absolutely block spam, my Mailscanner running ok but the spam still run off to my server. i do everything from tuning mailscnnner, spamassassin, amaisd-new but spam still send to user 10-20 per days.
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I had setup postfix and spam assassin, and in my environment, I forward the incoming email to my exchange server.
Everything works now, in my mail box, I can receive the email with subject ******SPAM*****. but is there a solution, when spam assassin finished the scan and mark spam, if the score is very high, may be stop to forward it to exchange, for example, send it to a special email box?
I've got a web server that's hosting a few sites, and there are a few WordPress instances with these sites. With Wordpress, whenever a user registers with the site, they receive an email.With my server, it sends mail via Sendmail. This is all fine and good, except no matter what, it's flagged as spam. Is there any way to correct this?Keep in mind that this isn't a mail server, and the only reason the server ever sends mail is for new wordpress users and password resets.
View 8 Replies View RelatedDoes anyone know if it is possible to set up Postfix to receive all email coming to mydomain.com and forward them to 2 different spam filters? All mail needs to go to both spam filters then onto our Exchange server
View 1 Replies View RelatedI was wondering if there was some kind of anti-spam proxy available for debian, that could serve as a layer between my ISP's mailserver and my email client. Something light, as it needs to be installed to a guruplug server with not much storage available. It would be great if I don't need to configure a fully fledged mail server but if it can function on it's own, only filtering spam messages. I already found assp and qpsmtp, but I find these very difficult to setup and assp is like huge.
View 1 Replies View RelatedI am new comer in this forum and the beginner on freeBsdI have a problem on how to implement the spam filter program on mail server, the problem is i have no idea on how to implement and test the spam filter program on the mail server and where should i put the program? is it in pop3?
View 3 Replies View RelatedI'm new here and I'm sure this question has been thrown around a lot but I just couldn't find a solution. I have a networking website I've setup and we need to send notification mails to our members depending on activity related to their profiles(messages, comments etc).We are hosting the site on Centos5.6 with VirtualMin and are using Postfix as our MTA. We also use google apps for email on the site. Heres the problem, the mails go through for some gmail users but more often than not, they end up in gmail,hotmail and yahoo spam.We've setup the appropriate SPF codes on the server, DKIM and rDNS works fine.v=spf1 ip4:xx.xx.xx.xx a mx include:_spf.google.com ~all Below is a sample email that goes directly into gmail spam. I've replaced the actual values with dummy text (Ip, Domain etc)
Delivered-To: my.email@gmail.com
Received: by 10.143.165.5 with SMTP id s5cs223598wfo;
Fri, 15 Apr 2011 08:38:22 -0700 (PDT)
[code]...
I need help with header_check filter on postfix. In the last week mail users received a spam e-mail without subject line and I don't know what is the way to reject this. This is the example of message header:
From: "example@example.com"
Date: September 16, 2010 9:07:43 AM GMT-04:00
To: <example@example.com>
I want to reject e-mails that don't have Subject line
I have an issue with postfix and my server.One account (mine) is not considered as spam by no one. But all the other users are treated as spam by yahoo, and hotmail. And I can't understand why.Here are the header from one user who sent an email to my yahoo account (treated as spam):
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From userNAme Sat May 22 01:52:27 2010
X-Apparently-To: me@yahoo.ca via 98.136.183.25; Fri, 21 May 2010 14:52:55 -0700
[code]...
I am using postfix as spam Mailscanner to protect my mail server running sendmail. The problem is that when I forward an email from MailScanner mail me back with the following error:
<postmaster@localhost.@mydomain.com.>... Real domain name required for sender address (in reply to MAIL FROM command))
Jul 27 13:15:59 smtp postfix/local[28465]: C68AC1000001: to=<root@smtp.mydomain.com>,
[code]....
I just setup SpamAssassin and what not following this tutorial
[URL]
I am using CentOS 5.3. I was half way through that and got an email that had ***SPAM*** in the subject. Haven't received any more. First of all I want to know if spam will still get delivered, and just have a modified subject. Second, I want to know how to set it up so Spam goes to a user's spam mailbox (Virtual Users). And third of all, is it possible to disable spam filtering on a user basis, preferably using MySQL tables? Is it possible for users to mark a message as spam, and all further messages sent from that address will be sent to spam folder but only for that user?
EDIT: Yes spam is getting delivered with a modified header, on the server site, how can i deliver to spam folder? how to create IMAP virtual mailboxes on request without having to send an email to them first? Using virtual users with Courier Imap
I have a LAMP server that has been up for a month or so before I get stuff like this:
Code:
60.12.233.54 - - [24/Jul/2010:22:46:07 -0400] "GET /w00tw00t.at.blackhats.romanian.anti-sec:) HTTP/1.1" 404 895 "-" "ZmEu"
[code]...
I currently have the following email server set up:
Postfix with mysql backend
Dovecot
clamav
spamassassin
amavisd
And it all works great. However I would like it for amavisd to forward all the marked spam into a folder on each user account, but I cannot figure this out.
We have a vpn that is accessible to anyone. We already block port 25, 587 and 465. But I am still receiving spam reports. I believe that the users of my vpn is infected by a virus or something that sends spam. Are there any other ways that spammer send spam mails without using the smtp ports?
My guess is that they are trying to send it by accessing a webmail. Have you heard of anything like that? how to block spam?
I use Debian Jessie + KMail on desktop side. My mail server has Spamassassin installed. My problem is that I receive some spam and it goes though the server-side filtering.
I mark all messages as SPAM in KMail but neither KMail or the server learn that those are spam and should not enter the inbox.
How to get rid of the messages? Unsubscribing is not an option - I don't want to click on any link contained in the mails.
When something comes in that gets sent straight to my junk mail folder, a notification STILL pops up... Also of note, I would like to stop notifications for my RSS feeds... I love my RSS feeds but this is ridiculous.
View 1 Replies View RelatedWhen i run
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I sometimes see
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So i'm wondering if this means my ubuntu server box is being used for spam or something? There are no other (human) users on the computer and i don't use it to send mails.
I've run
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In paranoia, but still when i run
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I get
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And sometimes
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Just thought i should ask before starting the tedious process of reinstalling and restoring the system.
We have a spam in our network and we installed antivirus in all our systems and cleaned the virus from all pc's after that i had removed my ip from the database of blocked ip's but still my ip is blocked for sending spam i don't know from which pc the spam is going on the internet.
so i have a question that my proxy server is redhat linux and as a newbie i don't know the command's to find out which pc is creating large bandwidth to the internet. If you tell the command how to see which pc is sending spam then i will discard that pc. Also i want a strong firewall to stop spam activities.
As of recently I've started receiving IM messages on one of my windows messenger accounts that I'm using with Pidgin that appear to be coming from certain contacts that have already been blocked. The messages are spam with a link to [URL]. Most probably there is something wrong with my security settings.
View 2 Replies View Relatedi have big problem see the message below
EB3B953E8934 3533 Sat Jul 16 22:41:24 discover@email.discover.com
(delivery temporarily suspended: host hrndva-smtpin02.mail.rr.com[71.74.56.244] refused to talk to me: 554 5.7.1 - Connection refused. IP name lookup failed for 203.121.27.186)
[code]....
Does anyone know how to block spam in the messenger Empathy? In my case it got to a level where I consider it as very annoying.
View 1 Replies View RelatedI, as many here, have friends on different IM accounts (and btw, so great that we have pidgin and empathy and not have to deal with 3 different softwares to talk to them) and of all that I have... which are not so many... one of them sends me spam, not all the time, but it happens and I kind of feel sorry for her so I'd like to see if there's a way for her to retake control of her account or if she can't do anything at all with it.
I have other friends in MSN but I get spam only from her and she's given up on how to fix it cause she doesnt know how to. I did a search (and keep looking for more in the web) and so far it doenst look promising (but is also because I dont know what else to do). The problem is I get messages which I know for sure are spam, cause her english is more limited and the messages are very polished in that regard.
I got this from another discussion elsewhere: "troutbot = These bots get your IM from scraping the Internet screenname and connect you randomly to someone else. While you're talking to the troutbot, they're just an intermediary connecting you to some other guy who also had his IM scraped." So far the times I get spam... the other side never answers, but if my friend is online she can. I thought that on these IM services... if you are logged in nobody else can log in with your username/password...
1.Have installed ubuntu 10.04 on 2 pc's both run xp on 1 pc boot up selects xp the other selects ubuntu as the first choice. Why?
2.How do I uninstall ubuntu, and what effect will it have on xp ( both imported xp documents and settings ).
3.Do I need an antivirus or spam/malware filter?
I just saw that my network is slowed so I watches the /var/log/squid/access.log where I get this line continuously....
[Code]....
I thought that someone running any script so I disconnect all my LAN connection (simply removed the local lan cable) but I saw the connections is going on....so I watch the processes on proxy server but nothing suspicious....So I change my static IP and the spamming stops (I say it is spam b'coz the IP 203.188.197.10 is of yahoomail.com ) but I when I am putting my OLD ip back the connection starts again......I want to put back my old static IP b'coz I have configured it for many services. Is there any spyware on my machine or someone configured my IP?
We operate a small ISP and are currently using a debian distro as our gateway server.Recently we have had an increased number of spam issues with customers (not them sending it directly, rather the customer getting infected with a virus/malware and then their computer becoming a bot).I'd like to set up another gateway of sorts to sit after our authentication gateway but before our backbone to provide spam filtering (and hopefully virus filtering) for any traffic passing through which might be email.I've tried searching for any linux based software which would suit, but I'm coming up empty.
Surely there's something already out there which can perform this task.Finally, just to clarify, I'm not talking about spam filtering for email accounts we host ourselves (this is built into our mail server); I'm talking about spam originating from customers PC's which is passing through our gateway (but not our mail server).
I'm setting up email gateway using Postfix, Amavisd-new, ClamAV and SpamAssassin on Opensuse 11.1. Everything seems okie, but I can't have messages with added spam headers, such as:
X-Spam-Flag: NO
X-Spam-Score: 0.233
X-Spam-Level:
X-Spam-Status: No, score=0.233 tagged_above=-10 required=6.6
tests=[ALL_TRUSTED=-1.8, AWL=0.536, BAYES_50=0.001,]
When I try to debug amavis, I can see that SPAM-TAG, <abc@yahoo.com> -> <celeron@domain.com>, No, score=5.406 tagged_above=-999 required=6.2 tests=[LOCAL_DRUG=4, NO_DNS_FOR_FROM=1.407, NO_RELAYS=-0.001] but they don't add to email messages. I've configured amavisd-new with $sa_tag_level_deflt = -999 to add spam headers at all but not successful.
I need to implement a form of filtering. Current topology is like so:
Internet -> Smoothwall -> MS Exchange server (w/ OWA) -> Clients
So I need to enable transparent spam filtering on the smoothwall system, which is a full fledged Linux system. There are no 'free' modules available for smoothwall that enable spam filtering. And due to the monetary constraints of the project I'm working on, something free is required.
I don't have any experience with this - I've done a couple of searches and came up with "SpamAssasin", but I can't find any relevant guides that allow transparent scanning - they all assume the mail is stored on THAT server.
So I'm here to ask the more experienced people what sort of packages will enable this functionality? Would like something that has a WebUI, but that's not absolutely necessary.
My postfix server has been working great for the last 1-2 years. Lately the number of spams encreased (from 1-2 every day to aprox 8-10 every day per domain for some domains ).I post here the output of postconf -n. Maybe someone gives me some advices about what cat I change or how can I optimize. I must recognise that I don't fully understand details of how postfix and all the restrictions works together, but I will document every advice.
View 4 Replies View RelatedMy client has finally had enough of being attacked via SPAM/Viruses and having his single email account for his company being destroyed. Since it is a single account and he does not want to add additional accounts or create a new one(mail is hosted by ISP), I wanted to ask the forum on their opinion on using Fetchmail to download the POP3 mail and having it piped through SMAM Assassion or DSpam and or CLAM_AV or F-PROT. In addition to that I am going to use a corporate strength anti-virus such as F-prot(Been using for years) and really put this email through a microscope. I also was thinking of just blocking out all domains other than his clients list of domains so in other words block all and allow just the domains that we know are valid and are only from his clients. It is super restrictive but what I believe will end his issue.
View 7 Replies View RelatedI tried to fix my audio today after flash was not giving any sound i can see the video but there is no sound a problem common on the Ensoniq ES1370 chip i tried to resolve that by taking out the card leaving only the onboard SiS audio but that didn't work iether so i then installed the ac'97 linux driver which also did not work. so i disabled the onboard audio in the bios and it is now not showing up but i also put the card back in and now that one will now show up in System > Preferences > Sound but it does show in the device in system-config-soundcard but when i try to test i do not hear the sound the card did work on non flash things before i did all this.
When i installed CentOS 5.3 from the dvd i have to take out my slave drive on the primary ide and switch it to a dvd drive i had lying around. i have 4 drives total that take all the channels. so when i installed i only had 3 connected. after installing i tried to plug the drive back in and when it starts to load grub right after post all i get is "GRUB" spammed onto the screen over and over.
i have done a yum update to a new kernel and it says i am running CentOS 5.4 now kernel is 2.6.18-164.15.1.el5 these are the only known things from holding me back from getting my full linux experience :(
