Security / Blacklist
Network security is critical to protect your data but many small and medium-sized organizations do not have the knowledge or infrastructure to do this properly.
The key is to start with the basics and then go from there. Here are six must have hardware/services that the team at RAM-Tech PC Solutions, LLC provide to ensure network security:
- Secure firewall – this protects your network from the outside world. Having a strong unified threat management firewall is a must.
- Updated and managed virus and malware protection – you should have both desktop and gateway anti-virus and anti-malware protection. Having this centrally managed is important because threats are constantly changing.
- Effective backup and disaster recovery – ransomware viruses are leading to painful data loss for businesses without effective backup systems.
- Strong email security (anti-spam) protection – many threats come in through “spoof” emails pretending to be delivery companies (FedEx, USPS, UPS) or from friends who have gotten viruses.
- 24×7 monitoring and network management – monitoring can pick up network security threats before they are happening or alert of potential problems.
- Ongoing software updates and security patches – Microsoft and other software providers regularly discover security holes in their products. If you are not installing updates and patches regularly your network will not be secure.
Make sure your network, your data and your future are secure with Security Services from RAM-Tech PC Solutions, LLC.
An email blacklist, also known as a DNS-based Blackhole List is a real-time database that uses set criteria to determine if an IP is sending email that could be considered spam. There are several blacklists including Spamhaus, Barracuda Reputation Block List,and SpamCop and they all have their own criteria for accepting inbound mail - and all can have a negative effect on your delivery rate.
How a blacklist works
The Spamhaus diagram below shows how a blacklist works. If the incoming mail fails to satisfy Spamhaus’ criteria for legitimate mail, the IP is included on its list. Some ISPs opt to use this data to inform their filtering decisions and delivery of the email messages sent over that IP. It’s important to note that Spamhaus has no control over delivery or placement of your messages. The blacklist simply serves as a tool to help ISPs make their own decisions.
How to find out if you’re on a blacklist
If your email service doesn’t provide alerts when your IP has been added to a blacklist, then you’ll have to do it manually. Start by visiting the top DNSBL lists. These include:
- Spamhaus – one of the most reputable blacklisting companies providing real-time anti-spam protection for internet networks worldwide.
- SURBL – a second tier filter that works in conjunction with Spamhaus to identify some of the most difficult unsolicited messages to track.
- Barracuda Reputation Block List – a free DNSBL of IP addresses known to send spam.
- Invalument – a subscription-based service that specializes in blocking elusive types of spam where the sender is sending 100% unsolicited bulk email and escaping traditional detection methods.
- Spamcop – lists IP addresses that had mail reported as spam by SpamCop users.
- MultiRBL – free multiple DNS blacklist service that cross references other blacklists by IPV4, IPV6, or domain.
How to get off a blacklist
High spam complaint rates are one of the main reasons that your IP ends up on a blacklist. So it’s imperative that if you discover you’re on one you take steps to get your IP removed from the list. Enter your IP into the above sites to check your list status and get instructions on how to be removed. The key here is to be proactive! ISPs like to see that you’re trying to remedy your delivery challenges in a timely fashion. When you are on a blacklist it’s best to have a deliverability expert like RAM-Tech PC Solutions, LLC on hand to help you navigate the ISP landscape. ISP relations can help you get your program up and running faster so that you don’t lose valuable time trying to figure out what went wrong.
How to stay off a blacklist
Reputation monitoring is the key to maximum email deliverability. By closely monitoring your complaint rates you can prevent delivery failures before they happen. These best practices will help ensure that you only send wanted email and stay off of blacklists all together.
RAM-Tech PC Solutions, LLC offer blacklist monitoring and remediation services and can help you stay off the blacklist.