Spam

How to optimize professional e-mail signatures

Professional e-mail signatures

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?

The e-mail header and its role in the world of spam

What information does the e-mail header contain?

Have you ever been curious about how an e-mail arrives at the designated recipient? The header area of an e-mail contains a lot more information than just the sender, the subject, the recipient and the date the e-mail was received. By displaying all of the e-mail header you can determine whether the e-mail falls into the spam category. Learn how to decipher the information in an e-mail header.

S/MIME: the standard method for e-mail encryption

S/MIME: how to encrypt and sign your e-mails

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...

Sign e-mails with a digital signature

More security online: sign e-mails with a digital signature

Spam e-mails may be annoying, but they’re mostly harmless. What’s more problematic is phishing – a technique whereby fraudsters try to con you by posing as trustworthy sender addresses in an attempt to get hold of sensitive data. These messages appear genuine too, because without a digital signature, it’s very easy to assume a trusted identity online. In order to protect customers and their own...

Newsletter KPIs: indicators in e-mail marketing

Click rate & opening rate – newsletter KPIs in 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?

SMTP-Auth

What is SMTP authentication? Secure e-mail against spam

Is your mail server configured with SMTP AUTH? If not, you should do so as soon as possible. Professional spammers are happy to see every open relay that they can use for the distribution of their junk mail. Such spam is not only hassle for the receiver, but also unnecessarily increases your server traffic and damages your online reputation. This security gap can be closed with the simple ESMTP...

Captcha | codes and images for spam protection

Captcha: codes, images and puzzles for spam protection

For years, the captcha has been a necessary evil for securing interactive web applications (e.g. online forms) against spam. The fully-automatic public Turing test distinguishes between computers and humans. The test exposes which automatic queries are performed by spam robots, which then minimizes the administrative effort needed for interactive websites. We present the most common types of...

How to protect your website from malware

Malware on the server: consequences and countermeasures

A website operator is responsible for the security of a web project as well as the content. Neglecting security may lead to hackers easily infiltrating the system through security gaps. If a malware-infected website goes unnoticed, it could cause serious damage. It is therefore important to make sure your site is fully protected.

How to recognize spam e-mails and prevent them

The right way to deal with spam

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.

Personal data

Everything you need to know about personal data

What do your e-mail address, eye color, preferred political party, and license plate have in common? They can all be regarded as personal data which companies and cybercriminals can use to draw direct or indirect conclusions about your physical, physiological, genetic, psychological, economic, cultural, or social identity. It goes without saying that this sensitive information must be protected...


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