What the phishing is and how to avoid it

After the last posts, where we wrote about deliverability (whether you miss those click here and here) today we talk about phishing.

With this word we mean as someone try to redirect users to a fraudulent website, with the purpose to steal personal information. Mail client notices this kind of links and blocks successfully this emails before they reach the inbox, , thanks to their antispam filter. This kind of messages are easily recognizable, because they ask to update the account information (for example user name or password). Typical expressions in this newsletter are “Update your account within 48 hours” or, “your account will be closed ..”

Many doesn’t know that sometimes you can do some “accidental phishing” in your newsletter, inserting some links to website in wrong way. When it happens mail clients block the email and report ip address to blacklists.

Let’s go deeply into the problem.


Sometimes, creating your newsletter, you can insert links in the wrong way. When you insert a URL in the e-mail platform, links are changed in a new script in order to make them trackable and visible in the statistic.

The platform must modify your URL and includes a sequence of extra parameters.

For example, when you insert the link:

http://www.kloudymail.com  and you use as visible sentence this: http://www.kloudymail.com

Kloudymail converts your URL in:

http://kloudy.nl/s/y432dij32k43dh/tda2sd4as43sjkh42/ (for example)

The e-mail client analyzes your newsletter and reads two different links: the sentence you wrote and the converted one, but they are different! It will be classified as a way to redirect users to a fraudulent website and the client blocks your email.


It is very easy. It’s enough to use a different sentence to identify the website’s link. For example, you can use “read more”, “discover more” or “visit our website” and on this sentence insert the URL. For the example we show above you should write “Look at Kloudymail” or just “Kloudymail”.

If you would know more about phishing, read the related wikipedia webpage.

0 replies

Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply

Your email address will not be published. Required fields are marked *