The Simple Mail Transfer Protocol (SMTP) is an internet standard communication protocol for electronic mail transmission. SMTP is a delivery protocol only. SMTP servers typically require authentication of clients by credentials before allowing access.
Many internet systems use SMTP as a method to transfer mail from one user to another. There are many SMTP service providers out there in the market.
Following are some of the advantages of using a SMTP server:
- It is a secure environment for sending emails.
- It has dedicated IP addresses and flexible API and SMTP setup.
- User friendly software.