The Polspam Level 3 Blacklist (BL) is an extremely strict IP and ASN-based blocklist (or blacklist) from the Polish RBL server, designed to list IPs and domains involved in severe or persistent spamming.
The Polspam Level 3 Blacklist (BL), with the zone name bl-h3.rbl.polspam.pl, is a Polish real-time blacklist (RBL) designed to combat spam. This specific tier, level 3, is described as an extremely hard blocklist focusing on IPv4 addresses and ASNs (Autonomous System Numbers). It is part of a larger project by Polspam aimed at discouraging bad netiquette and disrupting the activities of spammers.
Due to its strict and restrictive nature, the operators recommend against using this blacklist to outright reject emails. Instead, it is best integrated with spam filtering software, like SpamAssassin, where it can contribute to a spam score. This approach allows mail administrators to flag and filter potential spam without the risk of blocking legitimate emails, which can occur with such a stringent blocklist.
The Polspam project is run as a hobby by a community of volunteers. It is not a commercial entity; it does not accept donations, run advertisements, or generate revenue. According to its operators, it is not a provider of electronic services in a legal sense. Its sole purpose is to gather and publish information about sources of spam based on reports and data from the internet community. The project does not collect personal data and requests that all communications remain anonymous, focusing on the domain and its behavior rather than the individuals involved.
The delisting process for the Polspam Level 3 Blacklist (BL) is manual and requires direct communication. There is no automated removal form. The operators state they will not delist domains known for notorious or deliberate spamming. Removals are considered only for one-off incidents or accidental listings. Honesty and transparency are paramount; the operators note they can verify a domain's history and will not negotiate with senders who are untruthful.
Before you request removal, you must take several steps:
It is important to note that you should not request the delisting of an IP address directly. An IP address (or hostname) is listed automatically because a domain residing on it is on the blacklist. Once the offending domain ceases its spamming activity and is removed from the blacklist, the associated IP address will be removed automatically after seven days.
The impact of being listed on the Polspam Level 3 Blacklist (BL) is considered low. This blacklist does not, by itself, block your emails. It is a database that mailbox providers and system administrators can choose to consult. The final decision to accept, reject, or filter an email rests with the recipient's mail server.
The operators specifically advise against using this particular blacklist for outright blocking of mail due to its highly restrictive policy. Instead, they recommend its use as a component in a scoring system. Therefore, a listing is more likely to cause your emails to be sent to the spam folder rather than being rejected completely. However, any listing on a blacklist or blocklist can negatively affect your sender reputation and email deliverability.
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