Spam

What is a botnet?
What are Botnets?
  • Security

Botnets are tricky to spot, but they’re all over the internet and they cause all kinds of damage every day. They lurk inconspicuously in the background and use millions of private computers for malicious purposes. This guide explains how botnets work, how to keep them away, and how you can avoid falling victim to an illegal network.

What are Botnets?
How to recognize spam e-mails and prevent them
How to recognize spam e-mails and how to prevent them
  • E-Mail security

Billions of spam e-mails are sent daily. These annoying messages cost time and get on your nerves, especially when malware finds its way onto your computer or private data falls into the wrong hands. Just a few small tricks and a bit of caution when dealing with e-mails can remedy the situation.

How to recognize spam e-mails and how to prevent them
Outlook spam filter
Outlook spam filter: How to set up, customize and check the junk filter
  • E-Mail security

The Outlook spam filter automatically moves unwanted and potentially fraudulent emails to the junk folder. Even junk mail that doesn’t meet the typical spam criteria can be kept out of your Outlook inbox with the right settings. In case of errors, the Outlook junk filter can be easily adjusted manually.

Outlook spam filter: How to set up, customize and check the junk filter
S/MIME: the standard method for e-mail encryption
S/MIME: How to encrypt and sign your emails?
  • E-Mail security

If you send an e-mail without additional security measures, it’s like sending a postcard: if everything goes as planned, the information should arrive unchanged and unread in the recipient’s inbox. However, if someone intercepts the card or the e-mail in transit, they can read the contents without any problem and make as many changes as possible. Just like you would use an opaque envelope to...

S/MIME: How to encrypt and sign your emails?
What is greylisting?
What is greylisting? Definition, advantages and disadvantages
  • E-Mail security

Greylisting is an effective method for preventing mass spam emails from being sent out. Since this process happens in the background, most users are unaware that their inbox is being protected by greylisting. Here you will learn exactly how this method works on a technical level.

What is greylisting? Definition, advantages and disadvantages
What Is Pharming?
What is pharming and how to protect pharming attacks
  • E-Mail security

The internet is not only a vast marketplace for companies, but also a gold mine for criminals. They attempt to steal user data and redirect financial transactions by constantly developing new methods. One popular technique is called pharming. But how does pharming work and how can internet users protect themselves?

What is pharming and how to protect pharming attacks
How to identify phishing e-mails and protect your data
How to recognize phishing e-mails and protect your data
  • E-Mail security

Scammers send out dubious e-mails attempting to obtain sensitive data from internet users every day. This is known as phishing and isn’t just annoying; fraudulent e-mails cost millions each year as internet users fall victim to them. We reveal how to identify phishing e-mails and how to render your inbox harmless.

How to recognize phishing e-mails and protect your data
How to optimize professional e-mail signatures
How to optimize your e-mail signature
  • E-mail marketing

A professional e-mail signature is a standard part of business communication. Private users can also stand to gain from these e-mail additions. But what exactly does a good e-mail signature contain? And which information should your company include when sending messages to customers or business partners?

How to optimize your e-mail signature
The double opt in process
E-Mail marketing basics: the double opt in process
  • Technical matters

An inbox full of spam is enough to grind anyone’s gears. Too many marketers try to worm their way into the inboxes of potential customers without seeking permission. This is technically allowed in the US, but only until the recipient explicitly opts out. To ensure you don’t drive any customers away or ruin your company’s reputation by sending undesired newsletters, you should look into the double...

E-Mail marketing basics: the double opt in process
Newsletter KPIs: indicators in e-mail marketing
Click rate & opening rate – newsletter KPIs in e-mail marketing
  • E-mail marketing

In e-mail marketing, KPIs (Key Performance Indicators) are extremely important for analyzing campaigns. Various indicators can help you to determine the final success rate of your marketing activities. But how exactly can you measure metrics like a newsletter’s conversion rate, opening rate, and click-through rate? And which other KPIs are important?

Click rate & opening rate – newsletter KPIs in e-mail marketing