Now a day’s many technologies are made to increase the development in every field. Out of these technologies, one is SMTP (simple mail transfer protocol). This protocol is used to transfer the electronic mails (email). RFC 821 defined SMTP firstly in 1982. SSL secures the SMTP CONNECTIONS, certified as SMTP. Microsoft Exchange, IBM notes and web-mail system use SMTP when sending or receiving electronic mail from their personal systems. This is mainly used for sending and receiving the mail messages. It also transfers the message internally. It can send many emails to the other at the same time. SMTP has been used by the bulk email systems to send the message from one server to another over the internet.
Boosting Sender Score: SMTP improves the reputation to get the email delivered to the inbox.
Never Get Blocked Again: when someone sends many emails at the same time then there may be a chance of blocking of IP address but with the SMTP you will not have to face such type of problem.
Immediately Sending of Message: If the person diverts the email to the gateway server, SMTP starts sending an email immediately and takes care till the email is delivered to the inbox.
Deliverability Expertise: If there is any issue arise related to the delivery of emails to the inbox, SMTP search out the problem and resolved it and deliver the message properly.
This sends the emails, particularly where you want the send them. It is frequently used by the business developer, client, customers etc. SMTP uses TCP PORT 25 to setup the secure connection. If the SMTP server is able to receive the email for the address name in the RCPT command it sends an OK message to the client.