Backscatterer !!!! HELP

[NetworkNinja]

Hello Everyone,

 

I need your help with solving this issue with our mail-server. Recently we were blacklisted on the backscatter. This stops emails from being sent in or out of the school. We fix the sending of the NDR messages but next day they blacklisted us again.

 

they want us to pay 80 euros for delisting.

 

This is the link to there awful website Backscatterer.org powered by UCEPROTECT

 

If anyone has become across this before and have any ideas please help.

 

Thank-you

 

J James

[synaesthesia]

Backscatter is one of many, many DNSBLs and listing on one blacklist alone will not stop emails being sent to or from your organisation, period. Have you checked your mailserver on other BLs? MX Lookup Tool - Check your DNS MX Records online - MxToolbox will be your friend here and you should never have to pay a dime to anyone for delisting. It may also be something your ISP can help with.

[NetworkNinja]

Backscatter is stoping emails from being sent out. I Don't know why tho. I Searched on that MX Lookup tool a few days ago and it shows we are blacklisted.

[synaesthesia]

As said no one single BL provider can stop it. *not a single one* All email providers, at least those with more than 100 users, will use several blacklists if not tens of them.

Speak to your ISP.

[NetworkNinja]

we can send to most domains however it dosent allow us to send to some. Unfortunately the ones that it dosent allow us to is the ones the school needs the most such as other Lincolnshire school, hospitals ETC.

[synaesthesia]

Do they use the same providers perchance? Backscatterer isn't even a trusted blacklist, so if that is blocking anything Lincolnshire public servers should be ashamed of themselves.

[win]

Never heard of them, but they appear to be serious:

 

UCEPROTECT®-Network - Germanys first Spam protection database

[NetworkNinja]

Our ISP is Virgin Media. I think most of the other school are still with county council. However I can't see it being an ISP problem because we started out internet line way before the summer holidays. it all started at the end of august. we are just finding it very hard to remove this blacklist so everything can get back to normal. Would you suggest contacting out ISP.

[synaesthesia]

Yes I would, assuming they provide your DNS.

[dhicks]

We fix the sending of the NDR messages but next day they blacklisted us again.

 

It seems they blacklist you for 4 weeks at a time - if you're sure you've fixed the issue you can pay the 80 Euros for quick removal. You could also use a different SMTP server for sending email, and let mail server configuration become someone else's problem. If you have a Google account you could use that, or people like MailChimp do cheap accounts you should be able to use.

[AlexB]

Have you considered looking into DMARC and SPF records. It may be that a spam group is sending pretending to be your domain and causing the blacklisting. Having DMARC and SPF records should help reduce this and may prevent future blacklisting

[AlexB]

Alternatively, you may already have DMARC and/or SPF records and have changed your SMTP server causing blacklisting