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Is backscatter.org a legitmate blacklister?

I am receiving reports today that we are not receiving emails...that they are being bounced back (I'm in the process of getting copies of those notifications now).  This prompted me to check out our domain and I noticed that we are blacklisted by backscatter.org (using mxtoolbox, that is the ONLY blacklist we are on).  Backscatter reports the quickest way to get off their list is to pay 50 euros?  This seems suspect.

If we are blacklisted, does that stop us from getting emails?  I've had no reports that our outgoing is getting blocked.
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dhullett
Asked:
dhullett
2 Solutions
 
farazhkhanCommented:
Hi,

Yes, they are legitimate and some other RBL also ask for the money but that all is for Quick delist your IP from their database as they require manual delisting thus the admin task.

Otherwise the listing will expire automatically and free of charge 4 weeks after the last abuse is seen from that IP.

You should better block all SMTP traffic from your router to internet other then your mail server. Also take all necessary measures to remove any kind of bot or others.

Regards,
Faraz H. Khan
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Rajith EnchiparambilOffice 365 & Exchange ArchitectCommented:
Create a test account and run the inbound email test in the Microsoft test site. It will flag the issue that you are having.

https://www.testexchangeconnectivity.com/
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farazhkhanCommented:
Hi,

Just for your information, backscatter doesn't have any credibility in RBL servers. I don't think any server would block your mail on the basis of backscatter!

Regards,
Faraz H. Khan
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farazhkhanCommented:
Hi,

Must read this conversation: http://www.dnsstuff.com/forum/index.php?topic=1575677.0

Regards,
Faraz H. Khan
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dhullettAuthor Commented:
I had a feeling on the backscatter.  What about the issue of us not receiving emails from certain (but more than one) senders?  Are the two unrelated?
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farazhkhanCommented:
Hi,

Ask them for the NDR and then let us know.

Regards,
Faraz H. Khan
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dhullettAuthor Commented:
Just got the NDR:  It states (from mailer-daemon@theirdomain.org)

Deferred:  Name Server:  ourserver.com:  host name lookup failure

This sender happens to be someone that emails our office often and this just started on 12-31-09.
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tigermattCommented:

Paying to get off a blacklist such as backscatterer.org is indication that it is generally fake. Any seasoned email admin wouldn't normally use an RBL anyway unless they trust it and know exactly what it is doing. An RBL puts control of email delivery somewhat in the hands of another individual, so using random, uncommon or untested RBLs is by no means a good idea.

Since that bounce is coming back from the postmaster (mailer-daemon) at the remote end, it could be one of two things: a misconfiguration at their end, or an incorrect DNS configuration at yours.

The fact emails are not RECEIVED by you from several senders would be unrelated; unless you yourself implement RBLs or other anti-spam techniques which could be blocking the email, email will always be delivered successfully provided the mail configuration is properly configured.

-Matt
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farazhkhanCommented:
Hi,

Well, for above NDR it clearly states that their is some misconfiguration at senders mail server where it is unable to resolve your domain name! and getting NDR from their own postmaster. Ask them if they have changed any thing after 12-31-09 since the problem started!

You should check your mail server and DNS configuration at here: http://www.intodns.com/

and more insepectin of your Exchange server at here: https://www.testexchangeconnectivity.com/

Regards,
Faraz H. Khan
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