Launch the web browser of your choice and check whether the internet is active or not.
After that go to “webmail.roadrunner.com” on your browser.
When prompted, enter the username and password in the given blank.
Finally, click on the Submit button on your screen.
Go to your account settings by clicking on the Settings button.
Click on the Signature options to enter a signature text.
In the given column, enter your signature text.
You can also add time and location to the text.
Finally, save the settings when you are done.
You can check whether the settings are applied or not by sending an email to your own email address.