info/developer-roadmap
1
0
Fork 0
mirror of https://github.com/kamranahmedse/developer-roadmap.git synced 2025-09-01 21:32:35 +02:00
Code Issues Releases Wiki Activity

Add content for smtp

Browse Source
This commit is contained in:
Durrez Ahmed
2022-08-15 19:43:53 +05:30
committed by Kamran Ahmed
parent 97413171d7
commit 3cd48f0e4c
1 changed files with 8 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
content/roadmaps/102-devops/content/103-networking-protocols/103-emails/101-smtp.md
View File

@@ -1 +1,8 @@
# Smtp
# 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.
<ResourceGroupTitle>Free Content</ResourceGroupTitle>
<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.geeksforgeeks.org/simple-mail-transfer-protocol-smtp/'>What is Simple Mail Transfer Protocol (SMTP)?</BadgeLink>