AntiSpam

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Various techniques are used to prevent email spam (unsolicited bulk email). No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email (false positives) vs. not rejecting all spam (false negatives) - and the associated costs in time and effort. Anti-spam techniques can be broken into four broad categories: those that require actions by individuals, those that can be automated by email administrators, those that can be automated by email senders and those employed by researchers and law enforcement officials.

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Hello,

I am doing some testing of spam filtering solutions. Is there a service that will just send you spam to an email address? Thanks.
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Forrester Webinar: xMatters Delivers 261% ROI
Forrester Webinar: xMatters Delivers 261% ROI

Guest speaker Dean Davison, Forrester Principal Consultant, explains how a Fortune 500 communication company using xMatters found these results: Achieved a 261% ROI, Experienced $753,280 in net present value benefits over 3 years and Reduced MTTR by 91% for tier 1 incidents.

We have a Barracuda spam/Firewall 300 here that's got about 30,000 blocked/deferred messages in the outbound queue that I need to get deleted. I can't even bring up the outbound queue in queue management. I spent over an hour with Support and they cant connect with the guy couldn't figure out how to connect with it....that's a different issue. How can I clear these out? Its killing our mail throughput?? I know its got SSH but I can't connect to it. I'm not local to the system but I've got full admin rights. I cant even pull the export out of it.
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I manage a small network (84 users) We currently have a Barracuda Email Security 300 that is getting a bit long in the tooth and is in need of replacement. So, with that said I am looking at Fortimail (Because we have a Fortigate 200D) and Barracuda Essentials for Email Security.

I do know that in terms of price that Barracuda solution is cheaper but I hate having to evaluate based on price (But that's what the higher Up's see) Has anyone used the Fortimail solution? is it more or less the same compared to the Barracuda solution? I do think both offer "sandboxing" and that is something I am interested in..
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A recent post by Brian Matis motivated me to make this alternate post to see what sort of reaction others might have about these recent revelations.

A recent article on The Verge claims that "The older operating system was less vulnerable that anyone expected"

Windows XP computers were mostly immune to WannaCry

Another article from the same source claims "Windows XP was ‘insignificant,’ researchers say" with regards to helping the WannaCry outbreak spread.

"Almost all WannaCry victims were running Windows 7"

Lots of folks (from their perspective) with a genuine need to keep running on Windows XP suffered a lot of grief in Tech forums as being one of the root causes of giving WannaCry a platform to spread and thrive from, yet now it appears all the criticism may have been a little premature and unjustified.

For the record, I personally don't condone anyone using unsupported operating systems and actively encourage everyone I deal with to get themselves up to date, but I am also sympathetic to those who feel they have a genuine need to do that, so also think they shouldn't be …
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LVL 28

Expert Comment

by:Thomas Zucker-Scharff
We have too many XP computers at my institution (some with only SP2) - mostly due to budgets and instrumentation.
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LVL 10

Author Comment

by:Andrew Leniart
Hi Thomas,
Have you considered purchasing an XP Updates agreement with Microsoft? Might be an easier solution if budget restraints prevent you from upgrading? I wouldn't feel comfortable with a lot of XP machines in an environment as it would be a case of when, not if, it will come back to bite you.  Patches are available, just at a cost.

Incidentally, SP3 for XP is still provided by Microsoft - why not install it?

Steps to take before you install Windows XP Service Pack 3

How to obtain Windows XP Service Pack 3 (SP3)

Cheers..
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Dear Experts,

My clients and I tried to send emails to proofpoint customers but they get deferred or delayed.

I have done a blacklist check and our IP address is not blacklisted.

Is there anyway to contact proofpoint and inform them about this and get it resolved?
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Hello,

Looking for suggestions for the best anti-spam solution (software, not hardware)

Currently using Spamexperts, but still receive 5-8 spam messages per week, perhaps this is the best possible without blocking valid / clean messages?

I am looking for a hosted solution.

Thank you,
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Hi,

Any good free anti virus software that i can download and install on my window 10 laptop?
any good reliable dependable ones for free. please advise
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ScamAlert
An introduction to the wonderful sport of Scam Baiting. Learn how to help fight scammers by beating them at their own game. This great pass time helps the world, while providing an endless source of entertainment. Enjoy!
9
 

Expert Comment

by:Timothy Harrison
Comment Utility
Andrew. I am a Nigerian. The situation you highlighted is truly deep. The average street boys over here (14yrs and above)  especially in my area search for money through these means. They even have clicks to receive scamming training.

In my experience, I would advise guys over there not to be greedy (especially when they receive juicy invitations to make ridiculously huge  money you didn't earn). I truly wish people would wise up and not fall for such scams. Because the success of some scammers deceives the younger ones into choosing to become scammers. (I already have over 7 on my street alone.
2
 
LVL 10

Author Comment

by:Andrew Leniart
Comment Utility
Andrew. I am a Nigerian. The situation you highlighted is truly deep.
Hi Timothy, whilst it's true that a lot of the scams I'm talking about originate from Nigeria, hence the "419" reference, which I understand was derived from the Nigerian Criminal Code Act-Part VI and are prolific there, it's not only Nigerians that partake in this sort of criminal practice.

Indeed, many scams are conducted from countries from all over the world.. USA, Great Britain, Australia, pretty much anywhere. It's not just 419 scams either - scammers have turned to every imaginable way to try and trick people out of their hard earned cash.

You have your Love Scams, where scammers target the lonely. Tech Scams (found to be prolific in Indian regions) where they try and pretend to be Microsoft Technicians. Just about every subject matter from every country imaginable!

The Race of a scammer doesn't come into it for me - just because someone may be Nigerian or Indian or whatever, it doesn't mean they're dishonest. Thieves come from all walks of life.
In my experience, I would advise guys over there not to be greedy (especially when they receive juicy invitations to make ridiculously huge  money you didn't earn). I truly wish people would wise up and not fall for such scams.
You make an excellent point there Timothy.  Not all victims are blameless and there is undoubtably greed involved on some of those that fall prey to many of these schemes. Each case should therefore be viewed on its own individual merits. It is also a reason why many victims prefer to suffer in silence rather than report their losses to the authorities.

Thank you for your contribution to this topic. Always great to hear and explore other points of view.
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Hi All,

Could I ask for your recommendations please. I am having lots of problems with loads of spam at the moment on my server.  I used to run AVG on the server but still my clients had far too much spam getting through.  Can you suggest what is best.  I only have a small network of 10 clients and 1 server and limited budget.  Have been attempting to get BitDefender but their customer service is poor at the moment as I have been awaiting a call back for 2 weeks after several chase ups.

Have tried using the spam setting within my Windows setup but changing the setting makes little difference.

Many thanks
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Hi Guys,

We recently acquired the Antispam (CASS2.0) for SonicWall TZ400.
The feature has been installed and configured, but not yet enabled.

I just need some basic understanding and information from someone re the TZ400 Antispam feature.

1.  Our mail does not currently spool via the TZ400 router, it comes via another gateway.   I gather that we have to change our MX to route mail via the TZ400 for the antispam feature to work?

2.  Once mail packets pass via the SonicWall router, will the TZ400 pick up the mail traffic from the NAT rule for port 25 automatically?

3.  We will be using the current gateway as secondary MX (fail-over).  Any other suggestions regarding the config and first hand experience?
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I am at wit's end with something that I cannon understand is happening.

My boss signed -up for a newsletter from a website called "fisherynation.com". This news sites send several email out per day and they will not go into my bosses Outlook 2016 Inbox but rather to the Junk-Email folder. Here are the steps I have taken:
- In Junk Email Options, set to "No Automatic Filtering"
- Added fisherynation.com domain to "Safe Senders List"
- In Outlook Web Access (OWA) under setting for "Block or Allow" is set this to: "Don't move email to my Junk Email Folder"
- In Exchange Administration, Mail Flow.. I created a "Bypass spam filtering" for the sender of the emails in question.

Noe of this works! This particular sender of email is the "one and on;y" emails to go into his Junk Email folder. nothing at all besides.

Maybe this is a bug in Outlook 2016? Any ideas anyone?

Sincerely,
Steve
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Trying to create an send connector to first send e-mail to our spam filter service.  

Here is the configuration:
Type=Internet
Address Space:  Type=SMPT, Address=*, Cost=1
Network:  Route mail through the following host:  Smart Host:  NA0100.SMTPOUT.COM
Source Server:  equal our server.  

All outbound mail is being delivered, but it is not reaching the spam filter site.  Their technical support thinks it is the fault of the Send Connector and they are lacking in Exchange expertise.

Inbound works great and I would like the added benefits of the outbound for this customer, especially since they are a sensitive site.

Thank you for your assistance.
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Hi, I have a justspam.org issue. Our WP web server has been compromised and has been infected with a spam-sending virus. We have cleaned the infection but we got to many spamlists including justspam.org. The problem is, that we have never used this server (IP) as a mail server and we are using google services (not only) for emailing. We have made actions to block any smtp traffic from or to our web server. But that aslo means that we are not able to send de-listing email from our  IP.  This is a "catch 22 situation" when we are not able to send mail from that ip but the justpam.org server still keeps record that we used to spam and some of our customers' mail servers deny our mails as spam because they check our domain IP which ends on this IP... . How to get out of that? Is the only way to start webserver on that IP and send delisting mail? I would really hate to do that...
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Hi Experts,

is it possible to activate the antispam filter in EXCH2013 ?
How to check if its activated ?
0
Hi, we are deploying our own Exchange Mail server but do not have budget for Email security devices, such as Dell Sonicwall or Barracuda. How can anyone please suggest the best AV software (license) for Exchange Mail server? we did some research and found out some options like Kaspersky , Avast , ESET, AVG but have not decided yet. Thank you.
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Dear Experts

I have been told by few that even if we have good list that is opted in contacts if we use email marketing tool like mail chimp, campaign monitor etc   and engage with customers about our new product offerings still the mail will deliver to spam. I am not accepting this but they say such mails will either go to spam or they go to promotional emails category. please suggest is this how it works. thanks in advance
0
Currently our Proofpoint can take from a few minutes to 3 hours before it detects new
emails containing certain attachments & links (ie new threats) are 'malicious' or spam.
To claw back malicious emails 2-3 hours later is rather late. Wud rather have late delivery.

Our Bluecoat MAA that protects against malicious downloading (or malicious sites) can
take up to several minute : just encountered one case yesterday where malicious .eot
files were downloaded by several users before it blocked users from downloading.
This Bluecoat MAA is supposed to protect against 0-day and unknown threats as well
but we have got quite a few infections/downloads in the past: possibly its 'sandboxing'
is not real-time / fast enough.

I'm hesistant to deploy endpoint IPS (HIPS) on workstations at this moment so skip
this for the time being as HIPS can impact legit services/apps if not tested thoroughly
while network based tools like MAA (& Trendmicro Discovery) are less disruptive.

Besides educating users (which we have done quite a lot), I'm looking for sandboxing
products that could perform much faster : I read one academic article that products
that implement 'prefetching' using multi layer of caches are much faster.  If they use
SSD, wud it be faster?

In particular against ransomware as one highly successful one as extracted below:

Sky News Technology Correspondent Tom Cheshire described the attack as "unprecedented". The ransomware appears to use NSA 0-day …
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I was told that Malware bytes works with Norton and wouldn't be a redundant package to install on my pc.
I'm looking for second, third and fourth opinions.
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Automating Your MSP Business
Automating Your MSP Business

The road to profitability.
Delivering superior services is key to ensuring customer satisfaction and the consequent long-term relationships that enable MSPs to lock in predictable, recurring revenue. What's the best way to deliver superior service? One word: automation.

Like millions of others, I wake up to view many spam messages on my devices. I dislike it immensely. Is there a string or are there strings of words and phrases that I can use without trying to come up with all of them myself that I can exclude? For example, I NEVER want to see any email or sms that contains: "you have been selected" or "congratulations" or "important new breakthrough" or "blue pill". You get the idea. I don't mind creating rejection rules but I would like to start with one creation session that would catch a large percentage of crap and bury it before I even see it. I don't want to get so deep into this quest that I subscribe to any email forwarding service. I will also add, in case it gives anyone some ideas, that I have my own domain and can add and delete any number of emails I wish. I have learned that (obviously) since a questionnaire or sales inquiry indicates "we will not share this data with anyone" is pure @%#$^!%$. Miffed.  I use Outlook on my PCs.
0
7
 
LVL 16

Author Comment

by:Kyle Santos
Nice.  Thank you.
1
 
LVL 121

Expert Comment

by:Andrew Hancock (VMware vExpert / EE MVE^2)
I blame the NSA for creating the tools!
4
Dear Experts

We have email accounts of the prospects, customers who purchased and who did not purchase,  over the years this has become huge list and is available in sales force automation software , we are using SugarCRM, the list contains third party contacts. as email campaigns on this lists are making our domain black listed and messages are getting delivered to spam.  please suggest is there any software which validates and separates the good mail accounts and bad mail accounts , please suggest the software or any such service available
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Some (not all) spam emails are not detected by the DNSBL filter.
In the hMailServer log I can see:
DNS lookup: 200.197.98.172.zen.spamhaus.org, 0 addresses found: (none), Match: False

But, if I try to execute the following command:
host 200.197.98.172.zen.spamhaus.org
it does return a match:
200.197.98.172.zen.spamhaus.org has address 127.0.0.3

The hMailServer's spamhaus entry is configured as follows:
<DNSBlackList Name="zen.spamhaus.org" Score="3" RejectMessage="Rejected by Spamhaus." Active="1" ExpectedResult="127.0.0.2-7"/>

Open in new window


We are using local Windows Server DNS service for caching and I can't find the missed DNS requests in the cache.

How that could be fixed?
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Dear Experts

We used act-on marketing tool to send email campaigns approx 4000 contacts as of not 77 opened and 45 bounced, but few who have opened they had received the mail in spam, these list is opted-in, how can for few it goes to inbox and few it goes to spam, few said they got it inbox and few say they go it in spam both who said this are from gmail account. can you please suggest what would have gone wrong. how to make sure 100% inbox delivery and necessary measures please

Thanks in advance.
0
Having a spam problem when I send the emails directly from my server, I asked my client to open an email account on her server.
I used smtp authentication with email address and email password.
Here is the detailed answer, can anybody explain me the reason that I cannot send and the solution please.
Thank you.


PEAR_Error Object
(
    [error_message_prefix] =>
    [mode] => 1
    [level] => 1024
    [code] => 10006
    [message] => Failed to send data [SMTP: Invalid response code received from server (code: 550, response: 5.7.1 Rejected by spam filter (17211ed8-34a9-11e7-9a8c-336c9f1d8145) [CSP-02])]
    [userinfo] =>
    [backtrace] => Array
        (
            [0] => Array
                (
                    [file] => /opt/cpanel/ea-php56/root/usr/share/pear/PEAR.php
                    [line] => 577
                    [function] => __construct
                    [class] => PEAR_Error
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Failed to send data [SMTP: Invalid response code received from server (code: 550, response: 5.7.1 Rejected by spam filter (17211ed8-34a9-11e7-9a8c-336c9f1d8145) [CSP-02])]
                            [1] => 10006
                            [2] => 1
                            [3] => 1024
                            [4] =>
                        )

                )

            [1] => Array
                (
         …
0

AntiSpam

4K

Solutions

5

Articles & Videos

6K

Contributors

Various techniques are used to prevent email spam (unsolicited bulk email). No technique is a complete solution to the spam problem, and each has trade-offs between incorrectly rejecting legitimate email (false positives) vs. not rejecting all spam (false negatives) - and the associated costs in time and effort. Anti-spam techniques can be broken into four broad categories: those that require actions by individuals, those that can be automated by email administrators, those that can be automated by email senders and those employed by researchers and law enforcement officials.