In the early 2000's, many security professionals called for you to turn off the preview feature of your client e-mail your.
If you do not remember what happened in the past, you will say that it is safe
There are many articles advising you to turn off preview. Many websites considered its use of preview to be a bad idea. They often did not explain why, other than saying “you can open a message e-mail that you really do not want to open. "
The truth is that a virus or other dangerous program can be transmitted to your computer if you open an infected e-mail. To be precise, this was a problem for a while before the beginning of the new millennium.
For a short time, it was considered dangerous to open messages and, consequently, to use the preview window, unless one is sure that the e-mail is secure.
But the biggest developers e-mail of the time, such as Microsoft, Pegasus, Eudora and Apple (Gmail did not exist yet), took the case more seriously.
Within a few years, the problem virtually disappeared because all mail clients stopped allowing code to run when a e-mail. No mail client allows code execution when you open one e-mail. So, unless you are using a very old e-mail client (consider Outlook Express 2000 on a Windows 98 computer), your e-mail program will simply not allow code to run when you open a e-mail.
The real danger
In addition, all major account providers e-mail, including Microsoft, Apple, Gmail and Yahoo! have sophisticated virus and malware detection tools that prevent malicious applications from accessing your inbox anyway.
This does not mean that malicious applications do not circulate through it e-mail. But it requiresto be open an attachment or click on a link. So there are still voices that still say that preview windows are a serious danger. But they probably miss them…
The problem no longer seems to exist, so by disabling the preview window, the only thing you do is make your life harder.
As mentioned earlier, opening emails is safe. The danger comes from the links of "fishing" and the opening of dangerous attachments. These risks are the same whether you use them or not e-mail-client Outlook or Gmail.
Yes, it is safe to use the preview window and you can enjoy the convenience it gives you.