What handles requests for emails data and file transfers?

Requests for email data and file transfers are typically handled by email servers and file transfer protocols. Email servers, such as Microsoft Exchange or Gmail, manage the sending, receiving, and storage of email data, while protocols like SMTP (for sending emails) and IMAP/POP3 (for retrieving emails) facilitate communication. For file transfers, protocols like FTP (File Transfer Protocol) or SFTP (Secure File Transfer Protocol) are commonly used to securely transfer files between systems. These systems ensure that data is transmitted efficiently and securely between users and servers.