STMP, POP3 and IMAP Protocols

Depending on the needs of each company in order to properly transmit the information of their email, they must use a mail client to access a mail server. The mail client and mail server can exchange information between them using a variety of protocols such as POP3 that provides a simple way for users to access mailboxes and download messages to their computers. They can also choose to leave copies of their emails on the server. The advantage is that once your messages are downloaded, you can cut off the Internet connection and read your email without having to connect to the Internet.

In the case of IMAP it is a protocol in which the Internet server receives and maintains the electronic mail and also can create and manipulate folders or mailboxes on the server and delete messages.

SMTP serves to deliver your email to the recipient’s mail server. The SMTP protocol can only be used to send emails, not to receive them. This protocol is normally associated with others such as POP3 or IMAP, with SMTP being used for outgoing mail and POP3 or IMAP used for incoming mail.