Blacklisted mail domains

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Blacklisted mail domains

Post by FORScan » Mon Jun 22, 2020 1:40 pm

In the past time we experience problems with certain mail providers that refuse receiving any mail correspondence from FORScan mail server. These providers ignore or sabotage our attempts to resolve the problem and remove the blockage. Sometimes they explain their extremely unfriendly behaviour with some abstract "user complaints". It is strange because FORScan doesn't do any mass sends and the only mail correspondence we send are email notifications from our forum and replies from our support team.

After multiple attempts to resolve this kind of problem in a gentle way and understanding its absolute hopelessness, we have decided to create a black list of mail domains that refuse our letters or discriminate the work we do. Blacklisting means that:

1. Email addresses that belong to blocked domains will not be allowed for new account registration on our forum. Previously created accounts will work, but email notifications from the forum will not be delivered.

2. Requests to support team sent from blocked domains will not be processed.

Here is the list of blocked domains (updated on daily basis):
* (any subdomain of

Please do not use email addresses that belong to these domains when you communicate with FORScan forum or support. We are sorry for the inconvenience :(

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Re: Blacklisted mail domains

Post by kalongauto » Fri Jun 26, 2020 10:27 am

I think that is true

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Re: Blacklisted mail domains

Post by dmtaurus » Sun Jun 28, 2020 11:05 am

Well that stinks. I contacted TWC and asked them to unblock FORScan because I use it and subscribe to it.

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Re: Blacklisted mail domains

Post by MuskiesFan4Ever » Sat Aug 15, 2020 11:45 pm

Hey admin(s)... has recently changed web hosting services or made any modifications that might have changed the IP address of your web/email server(s) around the time these issues started?

If so the SPF record(s) in your DNS entries would need to be updated with the new IP address(s) of your CURRENT web/email server(s). Also there are some service provides that will block any incoming email with a domain that doesn't have properly configured SPF records in their DNS entries since this would not allow them to validate the authenticity of that incoming email.

More and more service provides are using SPF to validate sender email domains to block spoofing type email spam. No matter how many letters/requests/pleas you make to these service providers they can't override their SPF security protocols cuz SPAM SUCKS!! LOL

Might be something to check in to... if you haven't already.

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Re: Blacklisted mail domains

Post by DevourerOS » Sat Dec 12, 2020 9:14 am

Sometimes, it is the host it's self that has been known for allowing spam accounts to use their hosting. My domains had this issue, until I contacted my host, and they changed my server IPs and I am no longer blacklisted.

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