TempMail Hub
@tempmail_hub_botTemporary email inside Telegram: create a disposable address and get emails and confirmation codes right in the chat. No sign-up, inbox lives up to 7 days. Same inbox is also available on the web at tempmailhub.net.
You can subscribe to all the games you're interested in the Steam Store and this bot will send you a daily message when they're on sale.
— the badge on the card, faster publishing and a warning if the link stops working. How confirmation works