Simple Mail Transfer Protocol is a protocol for sending and receiving emails on the Internet.

This protocol improves the efficiency of data communication.

I check my work emails every day.

I emailed the teacher.

I uploaded a large amount of data to the server using the File Transfer Protocol.

I check my electronic mail every day.

My mailbox is full of spam.

I contacted him by electronic mail.

Please check my voice mail.

I sent the documents by mail.