How to Configure 1&1 Webmail SMTP in Magento 2?

To configure 1&1 Webmail SMTP in Magento 2, you need to log in to the Magento admin panel, navigate to Stores > Configuration > Advanced > System > Mail Sending Settings, and input your 1&1 SMTP server details (host, port, authentication, etc.) for outgoing emails. Make sure to enable SSL/TLS and test the configuration to ensure emails are sent correctly.