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What is POP3 / SMTP / IMAP / SSL / TCP-IP / HTTP / HTTPs ?

Hi Experts.

Can anybody tell me about the following questions.

What is POP3 ?

What is IMAP ?

What is SMTP ?

What is SSL encryption ?

What is TCP-IP connection ?

what is HTTP ?

What is difference in HTTP:// and HTTPs:// ?

Thanks in advance.



Former Member
Former Member replied


POP3: This is stands for Post Office Protocol this is part of mail inbox configuration, based on POP3 configuration mail will be reach to inbox from out side.

IMAP: This is stands for Internet Message Access Protocol, it is one of protocol for internet data transfer

SMTP: This is stands for Simple Mail Transport Protocol, it is outbox mail configuration, based on SMTP configuration mail will be send to target system

SSL: This is stands for Secure Socket Layer, this is mainly used to transfer data between two system in secure way. In this configuration we can provide security in transport (https) & message level (encryption & decryption)

TCP-IP: This is stands for Transmission Control Protocol-Internet Protocol, it is for using internet & intranet. This protocol will support most of all network.

HTTP: This is stands for Hyper Text Transport Protocol, this protocol convert data to XML format and send across internet & intranet.

What is difference in HTTP:// and HTTPs:// ?

HTTP & HTTPs main difference is security, http we don't have any security in message transport but HTTPs by default provide security in transport level & message level using digital certificates

I hope now clear

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