What is the difference between mail server and SMTP server?

A mail server is the generic term for incoming and outgoing email i.e. email being sent to you and also email you are sending to other people. SMTP Server refers to just the later i.e. is used for sending mail out to people.

What is the SMTP server for IMAP?

Step 2: Change SMTP & other settings in your email client

Incoming Mail (IMAP) Server	imap.gmail.com Requires SSL: Yes Port: 993
Outgoing Mail (SMTP) Server	smtp.gmail.com Requires SSL: Yes Requires TLS: Yes (if available) Requires Authentication: Yes Port for SSL: 465 Port for TLS/STARTTLS: 587

Is IMAP stateless what about SMTP?

POP3 is also a stateless protocol. IMAP is a state protocol, because the IMAP server must maintain a folder hierarchy for each of its users, this state information persists across a particular user’s successive accesses to the IMAP server.

Do I need SMTP server to send email?

Why You Need An SMTP Server? Without an SMTP server, you cannot send your email to its destination. When you click the “send” button from your email client, your email messages get automatically converted into a string of codes and are transferred to your SMTP server.

How do SMTP servers work?

An SMTP server is a computer or an app that is responsible for sending emails. It functions following the Simple Mail Transfer Protocol (SMTP). An SMTP server receives emails from the email client. Then it passes them on to another SMTP server and relays them to the incoming mail server.

Is SMTP incoming or outgoing?

SMTP (“Simple Mail Transfer Protocol”) is used for sending and delivering from a client to a server via port 25: it’s the outgoing server. On the contrary, POP (“Post Office Protocol”) allows the user to pick up the message and download it into his own inbox: it’s the incoming server.

Is POP3 persistent?

POP uses persistent TCP connections. POP is a connection oriented protocol. POP is an in-band protocol. POP is a stateful protocol until the mail is downloaded as well as stateless across sessions.

Is POP3 stateful or stateless?

The popular Post Office Protocol (POP3) used to retrieve e-mail is an example of a stateful protocol, as are File Transfer Protocol (FTP) and Simple Mail Transfer Protocol (SMTP).

Why is SMTP necessary?

SMTP is used to send emails, so it only works for outgoing emails. To be able to send emails, you need to provide the correct SMTP server when you set up your email client. Unlike POP3 and IMAP, SMTP can’t be used to retrieve and store emails. SMTP is also responsible for setting up communication between servers.