How to Implement SMTP Client on C++
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Simple Mail Transfer Protocol (SMTP) is an essential part of email transferring and for communication, we always need servers and clients that collaborate and negotiate for sending emails. Modern SMTP Servers must also consider methods for authenticating. Authenticating email is one of the best ways to signal to the receiving servers that the email you are sending is legitimate. To send emails, the SMTP Client needs to connect to an SMTP Server that will send the messages to the targeted recipients. The negotiation can be divided into. three stages. The server returns a number before the response message like fail or success.