Introduction
Email is still one of the most commonly used ways of communication in the world today, used by individuals, small businesses and large corporations alike. Unfortunately, the prevalence of email usage also makes it a prime target for spam
What is spam?
Spam is an unsolicited email that is sent in bulk to a large number of recipients. Spam emails are often sent with malicious intent, such as phishing scams, malware or ransomware.
How does spam make it to your inbox?
Spammers use various techniques to bypass your email provider’s spam filter. These techniques include:
- Using fake email addresses or domain names to mask their identity
- Sending emails with misleading subject lines
- Using images and hidden text to bypass spam filters
- Using botnets to send out spam emails in large volumes
How can you protect your email from spam?
There are several ways that you can protect your email from spam. These include:
- Using a reputable email provider with a strong spam filter in place
- Marking suspicious emails as “spam” or “junk”
- Never clicking on links or downloading attachments in emails from unknown senders
- Avoiding the use of your primary email address for signing up for online services or subscriptions
Advanced spam filtering methods
Advanced methods of spam filtering include the use of:
| Method | Description |
|---|---|
| Bayesian filtering | An algorithm that predicts the probability of an email being spam based on its content |
| Greylisting | A temporary delay in accepting email from a sender not previously seen by the email server |
| Sender Policy Framework (SPF) | An email validation system that allows domain owners to authorize which servers are allowed to send email on their behalf |
| DNS-Based Blackhole List (DNSBL) | A blacklist of IP addresses known for sending spam |
Conclusion
Spam can be a constant annoyance and even pose a security risk for your email account. By following the tips outlined in this guide and using advanced spam filtering methods, you can protect your inbox and stay ahead of potential threats.