The email headers are a set of data that contains important information about the message and how it was routed to its destination. Checking that information before clicking anything in the message body can save you from phishing attacks. It is also useful in some cases for troubleshooting email delivery issues.

By displaying the source of the message, the full content will open in plain text format. The part before “Content-Type” would be the email header, where you can see the sender and a lot of additional information about them. It will look similar to this:

For email at Hostinger, you can check the email headers via Webmail, just follow the instructions according to the type of email or email client you're using:

To check the headers of an email message, all you need to do is log in to your email account using Webmail, go to the message, then choose More and Show source:

The full content of the message will open on a new browser window, the headers will be at the beginning.

To check the headers on Titan, all you need to do is log in to your Webmail interface, open the message, click on More Options (three dots) → View Original:

A pop-up window will appear with the full content of the original message, the headers will be at the beginning.

If you are using an email client other than Webmail, you can follow the official guidelines to view the email headers:

NOTE: