Solved

how to remove from a realtime black list

Posted on 2014-10-09
11
985 Views
Last Modified: 2014-10-13
I was notified that we can't send email to *@mac.com emails.
When I ran a check on http://www.dnsstuff.com/tools#  and then ran the Spam Blacklist Lookup,
I get 2 entries that classified my company as a spammer.

spam
Then I also ran the same check at http://www.dnsbl-check.info/ and that came back all clean.

How do I remove myself from the DRBL WORK NODE GREMLIN.RU and DRBL VOTE NODE GREMLIN.RU sites, as I went to the websites and read the FAQ's, but I didn't find an email address where I can send an email and request that I be removed.  
Did I miss something?
0
Comment
Question by:afacts
  • 6
  • 5
11 Comments
 
LVL 63

Accepted Solution

by:
Simon Butler (Sembee) earned 500 total points
ID: 40371539
Considering that is a very obscure Russian blacklist, I doubt if that is the reason why you cannot send email to @mac.com addresses. I expect Apple are using their own internal blacklist.
People have been complaining about that blacklist since 2012, so I don't think it can be trusted.

Do you get a bounce back from @mac.com? If so, what does it say?
If not, then when the messages are in the queues it should return an error.

There are many reasons why email cannot be delivered, blacklisting is not always the cause.

Simon.
0
 

Author Comment

by:afacts
ID: 40371674
strange, I sent an email today and it worked fine, the user received my email.

I already emptied my deleted items, so I can't go back and get the NDR to see what the error was.

If it happens again, I'll post another message.

Thanks, Dan.
0
 

Author Closing Comment

by:afacts
ID: 40371676
Thanks for the response.!
0
 

Author Comment

by:afacts
ID: 40371843
Simon,  actually, I did find the email in another folder, here's what it was:

From: Microsoft Outlook <MicrosoftExchange329e71ec88ae4615bbc36ab6ce41109e@mydomain.org>
Date: Wednesday, October 8, 2014 at 8:15 AM
To: Terrance Cantrell <terrycantrell@mac.com>
Subject: Undeliverable: Re: - Landmarks of Prophecy Series

st11p00mm-smtpin009.mac.com rejected your message to the following email addresses:
Terrance Cantrell (terrycantrell@mac.com)
st11p00mm-smtpin009.mac.com gave this error:
Blocked - see https://support.proofpoint.com/dnsbl-lookup.cgi?ip=66.xx.xx.xxx: terrycantrell@mac.com
Your message wasn't delivered because the recipient's email provider rejected it.


This tells me that mac blocked it because we were blacklisted, right?
The 66.xx.xx.xxx IP is my IP address.
0
 
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 40371900
Did you click on the link to see what the site says?
That should point you to the reason why the message is being blocked. It could be an indication that you have a compromised machine on your network. Most blacklists will auto-delist you after a certain period, which would explain why the message went through earlier but then got blocked again.

Simon.
0
Do You Know the 4 Main Threat Actor Types?

Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

 

Author Comment

by:afacts
ID: 40371907
yes, I did click on the lnk, it was being blocked by proofpoint.

I check today and it's not being blocked any longer.

We sometimes send out hundreds or thousands of emails to our donors, so I think that every few months gets us blacklisted.  Is there a way to overcome that?
0
 
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 40372444
If you are doing bulk emailing then you should outsource it, so that your regular email is not compromised.
Bulk emailing will get you blacklisted, even with all the checks, double opt in etc. People will forget they have signed up or just don't want to hear from you again so will mark it as spam. Outsource it and it becomes someone else's problem.

If you really don't want to outsource it, then get another IP address and run dedicated bulk emailing software. However that will mean setting up feedback loops with the major email providers, the correct DNS records etc. Much better to get it outsourced - plus they can give you statistics that Exchange simply cannot on email delivery, deal with bounces and unsubscribe requests etc.

Simon.
0
 

Author Comment

by:afacts
ID: 40377518
Actually, we do outsource it, so it's strange that  we were blacklisted.
0
 
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 40377587
If you are outsourcing it, then it probably wasn't the bulk emailing that got you blacklisted.
There are other reasons, the most common being a compromised workstation sending out spam. Blocking outbound port 25 traffic for everything but the server resolves that issue.

Simon.
0
 

Author Comment

by:afacts
ID: 40378385
Thanks, that's a thought, so on my firewall, to only allow port 25 from the server, but then doesn't that cause problems for everyone using smartphones?
0
 
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 40378501
Depends if they are using smart phones with personal accounts.

If they are, then yes it would do. However do you want smart phones on your network?
Most of my clients will have a separate "guest" network for personal smartphones so that their traffic doesn't interfere with business traffic.

ActiveSync doesn't use port 25, so if they are business smartphones it wouldn't cause a problem.

Simon.
0

Featured Post

Promote certifications in your email signature

Has your company recently won an award or achieved a certification? They'll no doubt want to show it off. Email signature images used to promote certifications & awards can instantly establish credibility with a recipient and provide you with numerous benefits.

Join & Write a Comment

Local Continuous Replication is a cost effective and quick way of backing up Exchange server data. The following article describes the steps required to configure Local Continuous Replication. Also, the article tells you how to restore from a backup…
This process describes the steps required to Import and Export data from and to .pst files using Exchange 2010. We can use these steps to export data from a user to a .pst file, import data back to the same or a different user, or even import data t…
Familiarize people with the process of retrieving data from SQL Server using an Access pass-thru query. Microsoft Access is a very powerful client/server development tool. One of the ways that you can retrieve data from a SQL Server is by using a pa…
To show how to create a transport rule in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Rules tab.:  To cr…

707 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now