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.
View 5 Replies
ADVERTISEMENT
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
View 1 Replies
View Related
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.
View 2 Replies
View Related
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.
View 1 Replies
View Related
Jul 6, 2015
After I've upgraded Plesk 1.0.18 to latest version, I'm unable to set protection on directories. Plesk say it is set, but it is not. I can access protected directory without pop-up of login-details. Old protected directories work, but for new one added not working anymore. I also tried by conventional way adding .htaccess and .htpasswd files to the directory, but it does not apply either.
View 2 Replies
View Related
Mar 11, 2015
Is there a command to turn on antivirus for all mailboxes without having to enter each mailbox and update manually. I have over 800 mailboxes which need updating,
View 6 Replies
View Related
Aug 15, 2014
Today when I visited my plesk-stat folder, I saw that it is publicly available. Everyone can see the stats.
https://example.com/plesk-stat/
Is not this folder supposed to be protected by password as default?
View 3 Replies
View Related
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
View 14 Replies
View Related
Jan 28, 2007
What are the best ways to block outgoing spam? Installing APF would help ful?
Any other idea for outgoing spam?
View 5 Replies
View Related
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?
View 14 Replies
View Related
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?
View 9 Replies
View Related
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?
View 0 Replies
View Related
Jun 25, 2015
I have Spam in the Mail Queue.
How can I detect, where it come from, or how can I avoid it ?
View 3 Replies
View Related
Apr 3, 2015
Today in a plesk 12 with mail control (20 mails per hour per mailbox) a spammer stole a password of a mailbox and send nearly 1000 mails in two hours.
How can it is possible? Also in the stats I see 0 mails sent. In the logs (var/log/mail.log) I see the spam wast sent from a mailbox...
View 8 Replies
View Related
Oct 8, 2014
My server is saturated in SPAM e-mails being sent from it, however I am struggling in tracing the root of this problem. I have now exhausted 4 IP addresses and our provider is blocking port 25 automatically on a number of occasions now.
I have used the KB article: [URL] .... to trace the highest senders of e-mail, however this has proved to be unsuccessful in finding "all" of the offending domains.
I have suspended e-mail and domains on a number of subscriptions due to the high number of e-mails being sent from the system. I have also enabled outbound mail control and set limits to 10/hr however there are domains attempting to exceed this on an hourly basis. I have investigated these subscriptions but am not able to find anything offending. Is there any feature within plesk that can show me exactly where the spam is coming from...
View 6 Replies
View Related
Apr 2, 2015
I am dealing with a situation which i cannot understand. I am running an website for a resort and occasionally i am sending e-mail stop the people who book villas using the website. By occasionally i mean last year i sent 2 e-mail campaigns with a proper spam score.
However, at this moment, even the e-mails that i receive from the website's contact form arrive as Junk into Gmail for example.
View 4 Replies
View Related
Apr 16, 2015
Domain abc.com is hosted on our server, it has a hosted e-mail 123@abc.com. This e-mail adress keeps getting SPAM messages from an address abc@srv2.xyz.com (where srv2.xyz.com is our server FQDN). What we understood by reading the headers (posted below) is that someone is sending an e-mail to support@abc.com. This e-mail adress, as configured in Plesk, redirects e-mails to 123@abc.com. But we don't understand how someone managed to send an e-mail from an unexistent abc@srv2.xyz.com to it.
Here are the headers:
DomainKey-Status: no signature
Return-Path: <Coulter_Faustinoa1@aspli.com>
X-Original-To: 123@abc.com
[Code].....
View 1 Replies
View Related
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....
View 4 Replies
View Related
Nov 8, 2014
I have a Plesk v12.0.18_build1200140606.15 os_CentOS 6 server. using postfix
And Lots of spam is send from my server.
I tried: [URL] .... but with no results.
on the moment the /var/log/maillog file is over 5,5GB
and the /var/log/maillog.processed is over 7,2GB and splitted into multiple .gz files
What can I do to find the source of the problem and stop it ?
View 5 Replies
View Related
May 28, 2014
I'm getting a big problem on my server.
From 1 week until now I got 4 spam attacks. The attacker is the same, because the emails sent are iqual.
The technique is also the same, they use an email account (compromissed password) and send emails through smtp server.
When I detect the attack, i do:
1. identify the compromised account
2. Change password from the compromised account
3. Stop qmail
4. Clear queue with qmail-remove
5. Start qmail
The problem is that they already used 4 diferent domains since the first attack. So, here is my problem, how do they discover the passwords?! How can I solve this problem? I have hundreds of emails accounts and can't change it all.
CentOS release 5.10 (Final)
Plesk 11.0.9Â
View 1 Replies
View Related
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] ....
View 1 Replies
View Related
Jun 20, 2014
I facing a serious problem with my qmail and plesk 11.0.9.I found the way spammer did with my server by listening everything on port 25. Maybe he know the RCPT hosts of mine, and they send emails with random username but with domain hosted on my Plesk. (user1@mydomain.com, user2@ my domain.com, ... userxxx@mydomain.com).
qmail only check domain in RCPT if spammer input:"mail from user1@mydomain.com" - (with out ":") - no email address on my server.then server reply: 550, no mailbox here by that name. (#5.7.17)
But qmail check username and domain if spammer input:""mail from: user1@mydomain.com" - (with ":") - no email address on my server. Then server reply: 250 OK..This is really weird! I tried with all my plesk server, this bug still effected.Click to expand...
View 2 Replies
View Related
Dec 22, 2014
So, I have been searching everywhere online and have not come to a fully working conclusion with the issue regarding outgoing emails going to spam via gmail, hotmail, etc.Domain keys are activated, but it seems that domain keys is deprecated, making it useless when it comes to spam detection for email servers such as google, aol, etc.
The only alternative found was here: URL.....But that means that every customers DKIM will have to be created manually via command line. This would be a mission when having over 500+ ongoing customers signing up.Will you guys be implementing DKIM automation for Plesk? I am pretty much against trying to use c(p)anel + Centos and just love Plesk. So I prefer Plesk any day..
View 5 Replies
View Related
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.
View 6 Replies
View Related
Jul 29, 2014
Unable to add more than 100 emails on balck list [solved]
i am unable to add to add more emails on blacklist of server spam control
see the print
View 1 Replies
View Related
Jul 24, 2014
Somebody is sending spam from my postfix server.
How can I locate the domain causing the problem?
View 3 Replies
View Related
May 20, 2015
I have different adresses configured with several domains on the same server. All the emails send to gmail/hotmail adresses are marked spam.
Looking in the headers everything seems fine, including SPF:
Delivered-To: xxx@gmail.com
Received: by 10.202.174.138 with SMTP id x132csp563903oie;
Wed, 20 May 2015 04:53:19 -0700 (PDT)
X-Received: by 10.180.109.136 with SMTP id hs8mr40446245wib.73.1432122799197;
Wed, 20 May 2015 04:53:19 -0700 (PDT)
Return-Path: <x@x.nl>
Received: from x.net (x.net. [xx])
[Code] ....
testmessage
The server is not blacklisted...
View 1 Replies
View Related
Dec 12, 2014
I spent a lot of time trying to not have alarm messages into spam folder.
already added address to my contacts
already mark it as important
already changed sender email... but
Plesk where take email for Alarm Message?
Because I changed email (external) with 1 internal, but update alert arrive with administrator email and now is not going to spam, but alarm email arrive with old email (external, that is marked as pishing) ....
View 8 Replies
View Related
Aug 7, 2013
I have tried to send emails to gmail from horde and form php but the are mark as spam even if the gmail headers are ok:
Delivered-To: my_gmail_account@gmail.com
Received: by 10.112.205.233 with SMTP id lj9csp202933lbc;
Wed, 7 Aug 2013 05:58:22 -0700 (PDT)
X-Received: by 10.15.31.9 with SMTP id x9mr2966600eeu.103.1375880301851;
Wed, 07 Aug 2013 05:58:21 -0700 (PDT)
Return-Path: <info@my_domain.com>
[Code] ....
View 2 Replies
View Related
Nov 11, 2014
very simple spamassassin rule that will do the following…
Give a score of 2
For the word test in the subject field
Then can you tell me where on the Plesk 12 server to place the file for server-wide filtering.
View 2 Replies
View Related
Jul 18, 2014
I am happily running Plesk 11.5; with just one small but annoying persistent problem:
I have Clients with large mailinglistes
- SpamAssassin
- Server-wide greylisting
- DNSBL
is running.
But apparently many of the lists mail addresses have been harvested over the years. And as there is no easy way to use SA in mailman, I am down to greylisting only for list addresses.
This results in insanely large amounts of SPAM (-> moderation requests) on the client's lists. Is this behavior improved in Plesk 12?
Or can probably SIEVE filters work here - are those available to mailman? (probably not as they work in Dovecot?)
View 2 Replies
View Related
