SMTP
✳️ SMTP stands for Simple Mail Transfer Protocol.
✳️ SMTP is a set of communication guidelines that allow software to transmit an electronic mail over the internet is called Simple Mail Transfer Protocol.
✳️ It is a program used for sending messages to other computer users based on e-mail addresses.
✳️ It provides a mail exchange between users on the same or different computers, and it also supports:
💠 It can send a single message to one or more recipients.
💠 Sending message can include text, voice, video or graphics.
💠 It can also send the messages on networks outside the internet.
💠 The main purpose of SMTP is used to set up communication rules between servers. The servers have a way of identifying themselves and announcing what kind of communication they are trying to perform. They also have a way of handling the errors such as incorrect email address. For example, if the recipient address is wrong, then receiving server reply with an error message of some kind.