![]() ![]() Instead of just having one MTA at sending side and one at receiving side, more MTAs can be added, acting either as a client or server to relay the email. SMTP allows a more complex system by adding a relaying system.The mail transfer agent (MTA) transfers this mail across the internet. The user agent (UA) prepares the message, creates the envelope and then puts the message in the envelope. First, we will break the SMTP client and SMTP server into two components such as user agent (UA) and mail transfer agent (MTA).For example, if the recipient address is wrong, then receiving server reply with an error message of some kind. They also have a way of handling the errors such as incorrect email address. The servers have a way of identifying themselves and announcing what kind of communication they are trying to perform. The main purpose of SMTP is used to set up communication rules between servers.It can also send the messages on networks outside the internet.Sending message can include text, voice, video or graphics. ![]() It can send a single message to one or more recipients.It provides a mail exchange between users on the same or different computers, and it also supports:.It is a program used for sending messages to other computer users based on e-mail addresses.SMTP is a set of communication guidelines that allow software to transmit an electronic mail over the internet is called Simple Mail Transfer Protocol.SMTP stands for Simple Mail Transfer Protocol. ![]()
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