One of the chemicals used that damages the ozone layer is a refrigerant gas known as R22. This gas (a hydrochlorofluorocarbon or HCFC) is one of the last remaining ozone depleting substances that is in common use. However, the use of R22 for service and maintenance is now banned.
Yahoo Mail Classic Shuts Down. Yahoo Mail Classic shut down today, formally making way for the new version of Mail, which launched six months ago. Yahoo Mail Classic shut down today, formally making way for the new version of Mail, which launched six months ago. The Web giant announced the discontinuation in April, warning users that beginning June 3, Yahoo Mail Classic and other versions of the Web-based mail services would no longer be available.
You can use Yahoo to provide your customers with the latest updates and communicate easily with your employees. If any of your Yahoo contacts bothers you with unsolicited emails, you can easily block the contact and get rid of the emails. You can later unblock the contact if you want to receive emails from him. To unblock a contact on Yahoo, you merely need to remove his email address from the Blocked Addresses list. Step 1. Log in to your Yahoo account, click the gear icon and choose Mail Options from the menu.