Step 1: Generate e-mail sign

Go to https://portal.omni-x.cz/email-sign where you can generate your e-mail sign. First time full fill your location and choose your home OMNI-X.

On next page you can fill in all contacts which you'd like to put into your sign.

In the final you can hit GENERATE SIGN button in the bottom. It will generate your sign into file and download.

Finally you can attach your file into e-mail.