Outgoing Spam Protection

Jan 28, 2007

What are the best ways to block outgoing spam? Installing APF would help ful?

Any other idea for outgoing spam?

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Plesk 12.x / Linux :: Protection From Outgoing Spam - Error

Jul 3, 2014

I have some error when the new outgoing spam protection (limitation for outgoing mail) is enabled. Mail clients are unable to use SMTP for sending mails. "My mail client says: The message could not be sent. You are not allowed to use sendmail utility."

I don't undestand the blocking behaviour since the checkbox "Allow scripts and users to use Sendmail" is checked and no limit is exeeded.This is the relevant log part of maillog:

Code:

Jul 3 00:44:36 srv01 postfix/smtpd[3326]: C0E5182A20: client=46.128.x.x.dynamic.cablesurf.de[46.128.x.x], sasl_method=CRAM-MD5, sasl_username=info@domain.de
Jul 3 00:44:36 srv01 postfix/cleanup[3331]: C0E5182A20: message-id=<0A380CA8-AAE3-4FA8-BA7A-A3FDF7CD16E2@domain.de>
Jul 3 00:44:37 srv01 /usr/lib/plesk-9.0/psa-pc-remote[3280]: handlers_stderr: DATA REPLY:554:[B]5.7.0 The message could not be sent. You are not allowed to use sendmail utility.[/B] REJECT
Jul 3 00:44:37 srv01 /usr/lib/plesk-9.0/psa-pc-remote[3280]: REJECT during call 'limit-out' handler
Jul 3 00:44:37 srv01 postfix/cleanup[3331]: C0E5182A20: milter-reject: END-OF-MESSAGE from 46.128.213.43.dynamic.cablesurf.de[46.128.x.x]: 5.7.0 The message could not be sent. You are not allowed to use sendmail utility.; from=<info@domain.de> to=<mail@domain2.de> proto=ESMTP helo=<[192.168.1.20]>
Jul 3 00:44:37 srv01 postfix/smtpd[3326]: disconnect from 46.128.x.x.dynamic.cablesurf.de[46.128.x.x]

Moreover I disabled the line "non_smtpd_milters" in postfix main.conf since my server has same issues discribed in the following thread:
Postfix: mails sent through sendmail binary are blocked because of wrong HELO

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Spam Protection! ++ IronPort

Apr 11, 2008

For months ive been battling spam and other crappy stuff so i made a jump for a IronPort C10 (yea yea its the bottom of the barrel) but this thing works great for my needs and my users (family and friends).

My old load on my mail server was .8 all the time or higher now shes around .2

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Finding A Provider With Good Spam Protection

Sep 5, 2009

I have a client who is not happy with their current hosting provider. They get a significant amount of spam to their email addresses. Are there any providers you can recommend that offer good spam protection?

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Hosts With HEAVY DUTY Spam Protection..

Jul 25, 2007

Are there any hosting companies that use an Enterprise strength SPAM solution such as IronPort?

We have 3-4 business websites and spam, especially within the last 6 months, has become a tremendous problem. At least 100 spam emails a day are being delivered.

Spam filters do not solve the problem - they simply put some percentage of spam in a folder, often genuine emails, and we still have to go through it manually.

Do not mind paying a premium for the hosting. Any hosts that offer HEAVY DUTY spam protection?

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Plesk 12.x / Linux :: Maximize Spam Protection

Oct 22, 2014

I have 5 Linux Plesk 12 servers, and I use Spamassassin, usually at a sensitivity of 2 or 3, I also use the following DNS

Blackhole lists: zen. spamhaus. org;b. barracudacentral.org;abuse.rfc-ignorant.org;cbl.abuseat.org;bl.spamcop.net;nomail.rhsbl.sorbs.net

But all of this seems to have minimal effect. I examine spam that comes through which looks very obviously like spam, but Spamassassin gives it a very low score, usually in the negative numbers.

Is SA just not as effective as I thought? Seems like if Gmail, etc can filter spam so effectively, then why can't SA? If there's something I'm not doing right, or what you all do to combat spam with Plesk 12.

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Understanding Spam Outgoing

Mar 25, 2007

I'd like to seek help on how to read eximlog file. I saw the below inside eximlog. I'm wondering now because realemail@domain.com does not exist on this user emailaddress when I browse his cpanel. Now who is sending it? the only correct info is the pixelxl which is the user.

2007-03-25 14:49:41 1HVMXt-0000SV-7j => pixelxl <realemail@domain.com> F=<vsbqd@domain.com> R=localuser T=local_delivery S=2213
2007-03-25 14:49:41 1HVMXt-0000SV-7j Completed

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SPF, Outgoing Spam And Mail Configuration

Dec 10, 2008

I am trying to make sure my server configuration is optimally set to prevent my outgoing activation emails being set as spam.

so far I have set up an SPF record - Using Plesk for mydomain.com set up a DNS record of type TXT and value v=spf1 mx -all.

How do I check if this has been set up correctly?

I am using CentOS with Apache and Plesk 8.3 and I am sending mail using PHP's mail() function. The majority of the emails that aren't being received are going to hotmail accounts but I haven't yet sent a large enough amount of emails to view any concrete pattern. Curiously they don't appear to be going to the user's spam folder they are just being deleted outright.

Also, I'm not sure if it's related but one of my users mistyped their email address as @gogglemail.com and I now have a message in the qmail mail queue which is dated 1970. Is this something I am failing to do at a PHP level (i.e. not setting a date attribute)?

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Stop Outgoing Spam Using Mod_security

Mar 2, 2007

Can you share your mod_security rules to stop outgoing spam? (most generated by php contact forms)

And for incoming?

I would like to know what rules can work with mod_security 1.9.4.

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How To Filter / Track Outgoing Spam

Aug 9, 2007

I'm wondering if theres anything I can install on the server that will either filter or track outgoing spam. I don't want to limit the number of emails sent per hour or anything, I just want to be able to maybe search through some flagged emails or something. Or if they send the exact same email more than x times it can disable their account... I'm not sure

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Outgoing Email Is Flagged As Spam

Mar 30, 2007

A user in my server trying to send email, but email is flagged as "Absolute Spam" by Spamassassin. It says IP is listed in SBL/XBL.

There is an IP address in "Received-From" part of the headers. That IP is actually listed in several spam databases, but not my server's IP (Below, red and bold).
Email is sent from my server, but how come "From" IP is different from mine?

Headers of the email are below:

Quote:

Received: from [203.215.94.252] (helo=[10.0.0.7])
by server1.kanmonline-server101.net with esmtp (Exim 4.63)
(envelope-from <*********@sweetmail.org>)
id 1HQ3Yj-0007jV-6J
for ************@ezweb.ne.jp; Sun, 11 Mar 2007 00:32:37 +0900
Mime-Version: 1.0 (Apple Message framework v624)
In-Reply-To: <**********************@nm03imap01c.ezweb.ne.jp>
References: <**********************@nm03imap01c.ezweb.ne.jp>
Content-Type: text/plain; charset=ISO-2022-JP; delsp=yes; format=flowed
Message-Id: <98108bd45ea8b8bbd10cc7c35b6fad81@sweetmail.org>
Content-Transfer-Encoding: 7bit
From: =?ISO-2022-JP?B?GyRCOWI2NhsoQiAbJEIwITUqO1IbKEI=?= <**********@sweetmail.org>
Subject: Re:
Date: Sat, 10 Mar 2007 23:32:34 -0800
To: *********@ezweb.ne.jp
X-Mailer: Apple Mail (2.624)

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Spam/Virus Protection On Windows Server 2003 POP Service

Aug 12, 2005

We have a Windows Server 2003 dedicated, and use the Windows POP3 Service for emails, is there anything that can be plugged in to provide serverside spam/virus protection?

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Plesk 12.x / Linux :: Spam Protection Based On DNS Blackhole Lists

Jan 11, 2015

I have configured the DNS zones for DNSBL service as follows;

"zen.spamhaus.org;b.barracudacentral.org;bl.spamcop.net"

but I continue to to get spam from ip adressess that are confirmed as blacklisted at the above zones by testing them at [URL] ...

Is there something that I have missed in the config.

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How To Prevent Spam Flag On Outgoing Mail

Feb 14, 2008

I have a linux VPS with WHM and exim 4.68.

What common settings can I configure to not have emails sent to spam folder for mail servers like gmail, yahoo, and hotmail?

Reverse DNS seems to work, on dnsstuff.com my server name comes up for my IP.

mail.domain.com is coming up as the same IP as reverse DNS.

SPF record is set up for the domain.

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Plesk 12.x / Linux :: Switch On Spam Protection Based On DNS Blackhole Lists

Aug 25, 2014

When this option is enabled on the Mail Server Settings page, the page loads with the bottom of the page in focus and not the top.

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Plesk 12.x / Linux :: Updated From 11.5 - Outgoing Spam Not Working

Jul 2, 2014

I just did the update to 12.0.18 #6 and everything seemed to go pretty well. One feature we were really interested in was the Outgoing Spam Filter. Unfortunately, the error I see when I go to that feature reads, "Protection : Not active. There are some problems that prevent the service from being started."

When I Google that error, I'm brought to some KB articles but they are all for the older Outgoing Spam Filter that you need a license key for. I don't believe that is the case any more - if it is, I don't know where to get the key. I will say point out I'm a bit of a Linux novice (we are running CentOS 6.5 on this server), so I'm not really sure where to look....

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Plesk 12.x / Linux :: Postfix - Outgoing Emails Getting Spam

Oct 21, 2014

I have a hard problem with my VPS. I have postfix as mail server on plesk 12 under ubuntu 12.

I dont know why the outgoing mails of all my domains in my servers are getting spam in servers like gmail, yahoo, hotmail...

I'm using mxtoolbox to fix errors and warnings and finally fixed all of them, but my mails are still outgoing to spam.

In mxtoolbox actually I have no mail server errors / warning, u can see it with, for example, this one of my domains: [URL] ....

Headers:

This message is an automatic response from Port25's authentication verifier service at verifier.port25.com. The service allows email senders to perform a simple check of various sender authentication mechanisms. It is provided free of charge, in the hope that it is useful to the email community.

[Code] ....

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Plesk 12.x / Linux :: All Outgoing Mail Goes To Spam Folder

Oct 16, 2014

The problem is that all the mail that exits my VPS server (OVH) is going to the spam folders of Gmail, Outlook, etc accounts.

I've tried to connect my Gmail account to check via POP3 my inbox on my VPS, and all I get is an SSL error.

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How To Limit/block Outgoing Spam - CPanel Servers + EXIM

Mar 12, 2008

My server is sending all emails via exim smarthost to other specialised exim server (both cPanel). How may I limit customers from sending out SPAM ? Mean to scan outgoing emails and delete/store in some folder which ones identified as SPAM. Preferrably the scan part to be on exim email proxy cause it is much idle.

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DDoS Protection Providers Vs DDoS Protection Scripts

Oct 8, 2009

I am looking for some good ddos protection providers, via protected dns. I've searched on internet, but most of them are really expensive.

Please tell me some ddos protection providers what could help me.(gige is too expensive btw).

And I found some ddos protection scripts. How can a script protected a server from ddos? A sript like CSF or DDoS deflate?

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