In order to block blacklisted domains throughout our server we will be using the SpamBlocker blacklist domains feature built into DirectAdmin. How to Blacklist TLDs, Domains or Email Address Globally If you want to view all TLDs currently available so you can curate a more extensive list the IANA TLD list can be found here. For this guide we will use this list to help you get started in reducing the amount of spam received. The Spamhaus Project TLD list is updated on a regular basis and can be found here. They score the TLDs on a ratio of good to bad domains indicating that the registry needs to do a better job at enforcing policies and reducing abusers and the amount of suspected spam messages received. The Spamhaus Project maintain a list of the current most prolific spam TLDs. We will assume that you have already installed SpamAssassin, Exim and SpamBlocker on your DirectAdmin server. In this guide we are going to show you how to block specific TLDs with Exim and SpamAssassin using a global blacklist of domains and how users can block domains using SpamAssassin in the DirectAdmin dashboard. In September 2019, it was estimated that Spam messages accounted for 54.68% of all email traffic. The email spammers are signing up for these cheap TLD and continually sending out spam to legitimate email addresses. From these domains we have seen a significant amount of unsolicited emailed spam messages, also referred to as junk email, being sent and are being used almost exclusively for malicious activity. With so many TLDs available you will find many Domain Registrars offering crazy introductory offers for the first year of registration and have seen TLDs like. We saw an explosion of weird and wonderful TLD pop up and at the last count there are in excess of 1500 TLDs available ranging from. However, in 2012 ICANN and IANA ended the restrictions on TLDs, which essentially meant that anyone could register a TLD. Outside of these each country had their own TLD called Country Code Top-Level Domain (ccTLD) such as the United Kingdom who uses the. When the internet first started there were only six Top Level Domains (TLD or gTLD).
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