Solved

How to get removed from a Blacklist?

Posted on 2007-12-05
5
1,602 Views
Last Modified: 2013-12-20
When we query www.mxtoolbox.com/blacklists.aspx using our external ip address we are listed on 9 sorbs entries and 1 sorbs-zombie. Our site is by no means intended to be a spam site.

When we login as a member to www.dnsbl.au.sorbs.net we are told that we are not listed on their blacklist but we are listed on their dynamic ip space.

What is the best route to follow up this problem....do we try to contact our ISP to resolve why we cant send mail to a spcific web address or is there a better way of clearing our name from whatever blacklist is blocking certain mail that we are trying to send?
0
Comment
5 Comments
 
LVL 4

Accepted Solution

by:
edwardq earned 43 total points
ID: 20416908
On Sorbs.net site De-listing is http://www.dnsbl.au.sorbs.net/overview.shtml

What domains cant you send to?  Its becoming more common to block mail if the sending mailserver does not have a Reverse DNS entry.
0
 
LVL 9

Assisted Solution

by:unassassinable
unassassinable earned 41 total points
ID: 20421212
goto this site and enter the public IP for your exchange server:

http://www.mxtoolbox.com/blacklists.aspx

Then follow instructions for removing your IP from any blacklist found.  Usually by calling the other ISP or mail server support line and talking to someone to remove it for you or by putting it on their whitelist.

rich
0
 
LVL 18

Assisted Solution

by:Andrej Pirman
Andrej Pirman earned 41 total points
ID: 20421811
If your IP is not listed, then your ISP is guilty:
1.) If whole netblock is listed, I may tel you that there is not much you can do. Your ISP did not take care of spammers, so whole net block is on blacklist, and it can be removed only as whole, not IP by IP.
2.) If dynamic webspace, it means, that you have no proper Reverse lookup zone created (PTR record). You may fix it by, FIRST, creating A or CNAME record in your DNS, which resolves your FQDN to your public IP, and SECOND, requesting from your ISP to create PTR record for your static IP to resolve to your FQDN. Only then you may hope, that request for removal from blacklist will be granted.

Also, ensure your MAIL server is not open for relay to anonymus users. To test, go to www.dnsstuff.com and enter your domain name in " DNS Report" field. See the results under MX, and follow guides there.
After you configure your mail server to not have any RED or YELLOW tags in DNS Report test page, you may request delisting from blacklist.

And finally, if you are blacklisted from "netblock" reason, you *may* request action from your ISP, because only your ISP (as it is netblock owner) can ruquest delisting from blacklist, BUT my praxis shows, that such a requests are never granted. Why? Because ISP would need to assure that noone from whole netblock will send spam, but it is hard for ISP to guarantee such a measure.
0

Featured Post

Get up to 2TB FREE CLOUD per backup license!

An exclusive Black Friday offer just for Expert Exchange audience! Buy any of our top-rated backup solutions & get up to 2TB free cloud per system! Perform local & cloud backup in the same step, and restore instantly—anytime, anywhere. Grab this deal now before it disappears!

Join & Write a Comment

Don’t let your business fall victim to the coming apocalypse – use our Survival Guide for the Fax Apocalypse to identify the risks and signs of zombie fax activities at your business.
ADCs have gained traction within the last decade, largely due to increased demand for legacy load balancing appliances to handle more advanced application delivery requirements and improve application performance.
In this video we show how to create a Shared Mailbox 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 Recipients >> Sha…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

705 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

15 Experts available now in Live!

Get 1:1 Help Now