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Thread: Incoming Email Spam
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05-17-2015, 02:41 PM #1Junior Guru
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Incoming Email Spam
Hello everyone,
i was wondering how you people stop the incoming spam that comes to your emails ?
I am using a Dedicated for my Business sites with cPanel/WHM so configured nearly all settings that can make every incoming email to get scanned before arriving but still we have 100's of useless emails coming every hour!
PS : We are using Mailgun for Outgoing emails but is it possible to use them or maybe some other company with the incoming one's too ?
Regards
Bharat█ Bharat Vashist
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05-17-2015, 03:04 PM #2Web Hosting Master
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SpamExperts works great for Spamfiltering, I am working with 100's of server installed that and customers are really happy.
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05-17-2015, 03:55 PM #3Aspiring Evangelist
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cPanel 11.50 will have gray listing. This should help alot. We use spamexperts too and are very satisfied.
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05-17-2015, 04:55 PM #4Junior Guru
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Thank you for your suggestions, will contact SpamExperts tomorrow morning
█ Bharat Vashist
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05-17-2015, 08:24 PM #5Web Hosting Master
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Take a look to this link too http://www.scrolloutf1.com/
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05-17-2015, 08:40 PM #6The Linux Specialist
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Specially 4 U
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05-20-2015, 08:30 AM #7Newbie
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That's a real nightmare. I had so many problems with spam and tons of offers and other annoying stuff and I simply blocked sender.
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05-20-2015, 02:45 PM #8Junior Guru
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█ Bharat Vashist
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█ Follow us on Twitter: @ShineServers | Like us on Facebook: facebook.com/ShineServers
█ sales @ shineservers.com | call us: 011-43065882
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06-18-2015, 12:07 AM #9Web Hosting Master
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same here totally fed up with spam offers coming over email, still trying to find different ways to solve it
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06-18-2015, 01:26 AM #10Junior Guru
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Spamexperts and Mailchannels are good one as I have experience in both and still using in many servers
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06-18-2015, 01:46 AM #11Web Hosting Master
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sounds good, how much do they charge per server ?
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06-18-2015, 01:48 AM #12Web Hosting Master
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I started using MailFoundry about 3 or more months ago.
I chose that over SpamExperts due to the pricing, as well as the fact I could set up a non-protected email to have all spam forwarded there.
Mailfoundry is a cost of $1 per email account. I'm not sure what SpamExperts pricing was - I think it started at $50.
So it's about $5 for me per month.
I believe I get about 100 per day from non-RBL listed emails.
As for RBL listed emails, I have no idea.
Edit:
The advantage with SpamExperts is you can "resell" their services. Last I checked minimum commitment was $500 that can be used towards whatever their charges are. You also have to do whatever it is to have SpamExperts filtering on your own server.
MailFoundry does not - but they have their own MX servers which filter spam for your email addresses - so it's simply changing your MX records.
I believe both filter out the same amount of spam as each other. Just SpamExperts may have a better support team. They certainly have a better website, though!Last edited by Swizi; 06-18-2015 at 01:52 AM.
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06-18-2015, 05:24 AM #13Hello World
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Have you tried Mailscanner and other common open-source tools?
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06-18-2015, 07:12 AM #14Newbie
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I can help you. We have the exact same problem. Basically our employees have been using their emails for over 15 years and have signed up for news letters and all sorts of spam sites and before we would get 100's of useless emails bombarding our server. Till I found lots of helpful tutorials on how to minimize this. We now have 98% of the spam removed, but of course we haven't stopped it entirely but we are very close.
Any options not mentioned in this must be set to Default.
- First, log in to WHM.
- On the search to the left type in "exim" and click on the "Exim Configuration Manager" link.
- First we will modify the "ACL Options" so click on that tab.
Dictionary attack protection: on
Reject remote mail sent to the server's hostname: on
Apache SpamAssassin™: ratelimit spam score threshold: 10
Maximum message recipients (soft limit): 20
Maximum message recipients before disconnect (hard limit) (Minimum: 1; Maximum: 100): 20
- Next, we will look at the "Mail" options, so click on that tab.
Log sender rates in the exim mainlog. This can be helpful for tracking problems and/or spammers.: on
Sender Verification Callouts: on
EXPERIMENTAL: Rewrite From: header to match actual sender: all
- Next, we will look at the "RBLs" options, so click on that tab.
RBL: bl.spamcop.net: on
RBL: zen.spamhaus.org: on
- Click on the "Manage Custom RBLs" Manage button and add the follow RBL URLs:
DNS List: cbl.abuseat.org Info URL: http://cbl.abuseat.org/lookup.cgi
DNS List: b.barracudacentral.org Info URL: http://www.barracudacentral.org/lookups
DNS List: bl.spameatingmonkey.net Info URL: http://spameatingmonkey.com/lookup.html
After adding these custom RBLs don't forget to turn them on in the same "RBLs" tab option.
After you are all done, press the Save button!
Install ConfigServer Security & Firewall, this will protect your server from getting brute force connections to the SMTP/POP3.
Make sure you're using SSL and disable password login for shell so no brute force attacks can happen on shell accounts.
Also use the command tail -f /var/log/maillog in shell to watch for any spam being sent out, or someones password being compromised leading to the excessive spam coming in.
Use Malware Bytes to scan everyones computers for malware that uses the email system (if you're using Windows computers). Sometimes their computers can be a gateway for spam. NOTE: if you find any, don't forget to change their email password after it cleans the desktop.Last edited by cmcomputers; 06-18-2015 at 07:27 AM.
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06-22-2015, 09:21 PM #15Newbie
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I'm also looking for something...we currently use a custom built mysql/perl script/db, but only on our older, non cpanel servers. On our cpanel server we only use what comes with cpanel (spamassasin, box trapper). Barracuda was too expensive. We have 500-600 clients, with x number of email account per. Any suggestion on large number of email accounts without breaking the bank?
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06-22-2015, 11:32 PM #16Web Hosting Master
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-1 for spamexperts, wanting a pre-pay of $ 650, and a minimum spend of $ 65 per month... extremely odd for me.
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06-23-2015, 01:02 PM #17Web Hosting Master
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Spamexperts is great for admins/tech savvy clients.
We found it was very difficult to get clients using it. It ended up generating more work for us than it solved. We had to move clients off it.
Hopefully the interface has improved over the past couple years. We still use it for our own email filtering and a few clients though. We find it is very useful. It's just the interface from cPanel for clients was lacking. Thus making it hard to justify the cost.
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06-23-2015, 03:42 PM #18Aspiring Evangelist
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You can also purchase it from a reseller.
Their list of Resellers can be found here.Xonova Hosting Ltd
Premium Shared & Reseller Web Hosting
Apache® 2.4 + NGINX® + Varnish® Cache
PHP v5.4, 5.5 & 5.6 + MariaDB (MySQL) v10.0
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07-09-2015, 06:02 PM #19Junior Guru Wannabe
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We noticed that the spam we received was coming from .science and .link domains. We used SpamAssassin to blacklist those domains as it's highly unlikely that someone will send emails to our personal inboxes using a .science or .link domain.
This permanently resolved our issue.