AntiSpam

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,

We have a problem with an SMTP send farm. All public IP of the farm are blacklisted by Spamcop and we can't request a new delisting.

We are using an antispam filter for INcoming & OUTgoing mails. No mail can be send is a domain doesn't exist on our system. I download the list of sender contacted today & I tried to identify a problem on the list. But I found nothing suspect...

I think there is one (or many) mail adresses used by spamcop as "trap" to identify spam sender.

Have some advice to help me to solve this problem ?

Thanks.
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Cloud Class® Course: Microsoft Exchange Server
LVL 12
Cloud Class® Course: Microsoft Exchange Server

The MCTS: Microsoft Exchange Server 2010 certification validates your skills in supporting the maintenance and administration of the Exchange servers in an enterprise environment. Learn everything you need to know with this course.

Scrollout F1 is setup as a SPAM inbound gateway to an Exchange server.  We have some senders whos emails won't deliver to the Exchange server.  Thus far the emails have not kicked back.  The remote Exchange server is stating the message delivery has been delayed.  I am assuming Scrollout is terminating the connection from the remote mail server.  I did notice that the remote domain doesn't have an SPF record.  Would that be enough to cause this issue?  What can I do i Scrollout to mitigate the issue so we can receive their emails?  I don't see anything in the logs of the web interface that report any activity for the remote server domain.  Are there other logs on the Scrollout file system that I should be looking at?

Any help would be appreciated
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Looking for a low cost spam filter in an exchange server.  I was wondering if I could use a Ubuntu VM on the Exchange box and if there were some built-in or open source spam solution that I could install on the Ubuntu VM to filter out the SPAM email before passing it along to the Exchange server.
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This message is sent to me, from me and on behalf of me. Upon clicking the reply key I see the real sender. I have tried to options and add to the blocked list and also open the blocked content and unsubscribe them (meggannsmith6) to hopefully get them blocked by the actual company with the unsubscribe link.
This person is sending me multiple messages each day in two accounts and I changed the passwords and no luck.
What is the solution?
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Hello all,
I have a client that has 50 POP3 email addresses for their 50 computers that is being hosted at web.com and using Outlook 2016 as the email program.
The issue is that one of the POP3 email addresses is suddenly receiving a number of porno spam emails.
The web.com spam filter is set to default and I really don't want to change this since the client is in the medical community so it might reject legitimate emails.
Is there a good spam filter program that we can test on the computer that has the POP3 account on it?
I do NOT want to change the MX record for the domain at all to the spam software company like some of the software wants you to.
Thanks,
Kelly W.
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We will soon be starting a relationship with a company where we will be allowing them to send emails to our customers on our behalf from their mail provider using our domain name. They are using Amazon Ses, and they have asked us to add the amazonses.com domain as an allowed sender in our SPF record. We are going to do this, but I am a little uncomfortable with the risk of any potential Amazon cloud customer having the ability to spoof our domain and pass SPF. Because of this, I am looking into implementing DKIM and having the third party sign their messages with a private key.

I want to implement DKIM for our own domain's email messages as well. I have been reading up on DKIM, but it gets a little confusing when third party senders become involved. I am looking to see if anyone can provide me with a best practice for this situation.  If I create a private/public key pair for our domain, I am guessing that it is not recommended practice to provide that key to the third party and tell them to use the selector name I make up. I have come across different articles describing the use of multiple selectors, but I admit I am finding them confusing. Can I have two different private keys for the same domain? Then I could give them one private key for their emails and have a separate key for our emails? Do I use the same private key, but create two selectors for my domain? Then provide the third party with the private key and tell them to sign using the alternate selector? At that …
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Dear Experts

Iam looking for good antivirus/anti spam and other protection software for the recently purchased dell latitude 3940 with windows 10 would like to subscribe for good one can you please suggest which one to go for, thanks in advance. mcafee total protection is slightly cheaper compared to mcafee business security please suggest.
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You have a secure Document from . Open message below

 click here.

Note; Your email and your password is required for authentication.

Can you please let me know how to block this message in o365 and what are the  preventive steps? Thanks.

Regards,


Note- please help me how to block - we have o365
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I deleted an important folder and the spam folder. I empty the deleted mail folder. I restored both together in a new folder. Now I have few important messages (10.000) and a mass of spam together (54.000 ).

We have both kaspersky serverside anti spam and EOP. Both only works on recived Items. Is there a way to scan a folder marking spam items and moving them to spam folder?

I tested spambully but it crashes on training.
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This question is for the Exchange Admins out there who have experience in dealing with phishing campaigns or malicious emails in general.

When a phishing campaign with malicious links and/or attachments hits your mail servers what are doing to figure out who clicked the links or attachments in said phishing email?

We are using Exchange 2013 CU19 On-Premise , Outlook 2013

Thank you for your time and knowledge!
0
Cloud Class® Course: Certified Penetration Testing
LVL 12
Cloud Class® Course: Certified Penetration Testing

This CPTE Certified Penetration Testing Engineer course covers everything you need to know about becoming a Certified Penetration Testing Engineer. Career Path: Professional roles include Ethical Hackers, Security Consultants, System Administrators, and Chief Security Officers.

Learn to use the POWER of Mailwasher Pro - Part 2
This is Part-2 of Learning to use the Power of Mailwasher Pro so if you haven't watched Part-1 yet, I urge you to do so before watching this video. Click this link to watch Part-1.

Ok, that out of the way, what we're going to cover here is how to setup additional Email accounts in Mailwasher, along with how to classify what "you" consider to be spam and what you don't. Also, we'll be looking at how we can recover deleted emails, even if you've cleared your Deleted Items folder in Outlook and more.

Remember the old adage of One Man's Rubbish is another Man's Treasure? Well, that's why I dislike Online Spam Filtering services and prefer tools like Mailwasher because it gives me total control - a control that you should have too and in doing so, never having to lose a genuine email again.

Finally, if you found this video helpful, please do click that Thumbs Up button below.

It really helps me out and provides me with positive feedback
.


With that said, let's get on with the show. I hope you enjoy the video(s)

Enjoy!

About the Author: Andrew Leniart is a self-employed IT Professional and Freelance Journalist with over 25 years of experience in using, fixing and troubleshooting Windows computers, dealing with a wide variety of installations, operating system versions, and software. He currently holds the Senior Editor position at Experts Exchange.

1. Introduction.

(00:00 - 00:20) An introduction on what is going to be covered in this episode.

2. Manually setting up an email account.

1
Learn to use the POWER of Mailwasher Pro - Part 1
If you, like me, have a dislike for using Online Subscription anti-spam services, then this video series is for you. I have an inherent dislike of leaving decisions such as what is and what isn't spamming to other people or services for me and insist on being able to make those decisions for myself.

Why?

Because as the old adage goes, one man's trash is another man's treasure. This video series is about a tool that I've been using for over 15 years now and as a result, my Outlook inbox has been 99.99% free of spam for many, many years. Yours can be too and it's easier than you may think!

This Video Tutorial shows how to obtain and install a tool called Mailwasher Pro which in this authors opinion, is one of the best Anti-Spam utilities available on the market. As mentioned previously, I've been using Mailwasher for over 15 years now and can honestly say that my Outlook Inbox is 99.9% free of Spam.

This is a multi-part series that goes into not just installation and use but shows you advanced configuration options to train Mailwasher Pro to know exactly what YOU consider to be spam, rather than rely on online services who make those decisions for you.

For those of you that prefer to read articles rather than watch videos, please check out the articles I've written on this topic and published on experts exchange at the following links:

Learn to use the POWER of Mailwasher Pro - Part 1
Learn to use the POWER of Mailwasher Pro - Part 2

1
Mailwasher Pro
Tutorial: In this part of my series, I'll be explaining how to set up an IMAP connection in Mailwasher and Outlook and also explain the differences of how Mailwasher handles POP and IMAP connections. Enjoy!
1

Expert Comment

by:Nick Bolton
Comment Utility
Excellent, I think a lot of users get stuck on the email settings parts and what they mean, so this guide makes that a lot clearer.
1
LVL 19

Author Comment

by:Andrew Leniart
Comment Utility
Thanks for your comments Nick and I'm glad you approve. I'm writing these articles so that people can learn to use the power of this tool and enjoy it's functionality just as I have been for so many years.

Regards, Andrew
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I want to know about email spoof.
For example , I know that we can verify an email is spoofed or not by SPF.
But using anonymousemail.me ,we can know it is spoofed mail, but it goes into inbox.
Why it is not filter by spam-filter?
Thank you.
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Mailwasher Pro
An explanation of How the Recycle Bin works and how to configure it so that it works for you just as you want. Enjoy!
1

Expert Comment

by:Nick Bolton
Comment Utility
Thanks again Andrew, you write so well!
1
LVL 19

Author Comment

by:Andrew Leniart
Comment Utility
Thank you very much for the kind compliment Nick!

If you would be so kind as to endorse the article by clicking the thumbs up at the bottom of the article, (to the left of the word comment) I'd very much appreciate it :)

Part-4 of the series is almost written and will be published soon!

Best regards,

Andrew
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Mailwasher Pro
Part 2 of my series about Mailwasher Pro. Learn about what Mailwasher is and how to massage this tool to your own specifications with some powerful configuration options that many users overlook, and by doing so, you can, like me, enjoy a totally spam-free inbox. Enjoy...
1

Expert Comment

by:Nick Bolton
Comment Utility
A great follow on from Part 1 on how to get the spam filters to work for you.
0
LVL 19

Author Comment

by:Andrew Leniart
Comment Utility
A great follow on from Part 1 on how to get the spam filters to work for you.

Thanks for the kind comment Nick and once again, welcome to Experts Exchange! Watch out for Part-3, being written now and will soon be published.

Best...

Andrew Leniart
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i am a google adwords customer and have a number of ads setup, each of which directs the "clicker" to one of my website pages. I was testing one of the ads yesterday and found that when I click on it, I am directed to a page that is not remotely associated with my website. It takes me to a page that sells viagra. This happens on all of my computers and all browsers on all of those computers. It even happens on my cell phone. It does not appear to happen to anyone else. I just got off of the phone with Google support and they could not replicate the problem. When anyone there clicked on the ad, the correct page opened. I've had others test it as well and they all get connected to the right page. It appears that it is just me who is having the problem. I downloaded malwarebytes and ran a scan on one of my pcs but nothing was detected.

Any ideas out there about what could be causing this and how I can fix it?

If you google for "Maximo Training" my add should be very near the top of the list. It's "Maximo Training | Training by Maximo Experts | mmgts.com. When I click on that add, a page with the correct URL opens but it shows a page for Viagra sales. When I right click the link and choose "open link in an incognito window", the correct page shows up.

I have 2 windows 7 pro PCs and one windows 10 pro PC. As i mentioned, I get the same results on each. Also have the problem on my cell phone.
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Dear Experts

Please can someone assist me.

The public IP of my IronPort keeps getting blacklisted.

I have an Exchange 2010 environment with Cisco IronPorts used as my MTAs.

I have attached the error message.

They keep talking about "direct-to-mx".

My send org send connectorThe Error
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Mailwasher Pro
Mailwasher Pro by Firetrust is powerful anti-spam utility, ideal for managing both POP and IMAP connections. Read this series of articles to learn how to setup and take advantage of its great features!
1

Expert Comment

by:Nick Bolton
Comment Utility
Great introduction to setting up and getting started with MailWasher Pro. Thanks Andrew!
1
LVL 19

Author Comment

by:Andrew Leniart
Comment Utility
Great introduction to setting up and getting started with MailWasher Pro. Thanks Andrew!

Hi Nick and welcome to Experts Exchange! Thank you for your kind comment and also for endorsing the article with a thumbs up. That means a lot to me so much appreciated.
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Hey MSSPs! What's your total cost of ownership?
LVL 1
Hey MSSPs! What's your total cost of ownership?

WEBINAR: Managed security service providers often deploy & manage products from a variety of solution vendors. But is this really the best approach when it comes to saving time AND money? Join us on Aug. 15th to learn how you can improve your total cost of ownership today!

AV software best compatible with O365. Any suggestion? Local outlook emails? Thanks
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Phishing scam: "Pending message"- how to set my sonic wall for such type of email. We have O365 email system. Thanks
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I have a client that sends invoices through Netsuite. The clients domain uses SPF, DKIM, and DMARC. Their DMARC policy is: (v=DMARC1;p=reject;aspf=r;rua=mailto:admin@domain.com)

When emailing certain customers they get bouncebacks and after contacting Rackspace who hosts most of the customers they can't reach. Rackspace is saying it's because of domain alignment under the DMARC standard even though SPF and DKIM match fine. (After I finally reached someone who understood what DMARC was and didn't want me to add Rackspace to our SPF...)

The headers on the netsuite include the following bits which some or all are apparently the cause because they specify netsuite instead of my client's domain so they aren't aligned:

smtp.mailfrom=bounces.na3.netsuite.com
helo=nmail001.na3.netsuite.com
Reply-To: User <transactions#_msg_#@transactions.na3.netsuite.com>
Return-Path: b.#.user_domain_pcom.#@bounces.na3.netsuite.com

Spoke with someone at Netsuite who says that Netsuite can't change this behavior at all, but Netsuite also claims they can send DMARC-compliant mail. Is anyone else able to get DMARC working completely with Netsuite?

When the client sends to me on O365 it passes SPF/DKIM/DMARC just fine, but I also see the above bits in the headers. It looks to me like it's doing SPF checks against the netsuite.com domain instead of my client's domain...which seems like Netsuite actually is tagging these wrong...

This is what O365 says in my headers for DKIM/SPF/DMARC …
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1. Is it recommended to have both Windows Defender and
     Symantec EndPoint Protection running at the same time ?

 2. If not, how can I setup my MDT image
    so it does not deploy Windows Defender ?
-----------------------------------------------
Environment
  ** Windows Server 2012 R2 test domain
  ** Symantec EndPoint Protection deployed
       to Windows 10 Pro client via MDT image
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Hi everyone,

I have a simple questions that's been bothering me for a while now. I have a 3rd party Spam Filter connected to my Office 365 Tenant. When an external sender sends me a legit email it is being tagged as a SPAM. My question is when the email passes through the 3rd party spam filter, is the email still going to be scanned by Office 365 EOP once it reaches Microsoft server or will it bypass EOP?
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Our organization is on Exchange 2010 hybrid environment with O365. All incoming mails are directed to an external spam filter organization which delivers to our CAS servers that handles mail. 3 emails were stuck all night into the spam deliver queue unable to deliver these 3 messages to our server, rest of the messages were flowing. On the spam company side, it just shows peer not accepting the message so they kept retrying. In the end we ended up simply rejecting these messages from the external spam filter delivery queue.

I want to investigate the reason to why this email was stuck in the queue for so long and our exchange was not accepting it. It looked legitimate. I am new to exchange learning, what would be the best way to find out the reason and analyze the log once I find them ?

Thanks
0

AntiSpam

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.