tags:
- roadmap
- devops
- devops-cloud-providers
- ready
- online
devops-cloud-providers-smtp
Contents
__Roadmap info from [ roadmap website ] (https://roadmap.sh/devops/smtp@zJy9dOynWgLTDKI1iBluG) __
SMTP
Email is emerging as one of the most valuable services on the internet today.Most internet systems use SMTP as a method to transfer mail from one user to another.SMTP is a push protocol and is used to send the mail whereas POP (post office protocol) or IMAP (internet message access protocol) are used to retrieve those emails at the receiver’ s side.SMTP is an application layer protocol.The client who wants to send the mail opens a TCP connection to the SMTP server and then sends the mail across the connection. The SMTP server is an always-on listening mode. As soon as it listens for a TCP connection from any client, the SMTP process initiates a connection through port 25. After successfully establishing a TCP connection the client process sends the mail instantly.
Visit the following resources to learn more: