Opening or sending an email is a simple task for most of us. However, you should know that for this to happen there is a server-client structurewhere there is a user who is the one who sends the message and a server who is the one who processes and receives it.
For this to happen, the data that make up the email must be transferred, for which the SMTP protocol is used, which means “Simple Mail Transfer Protocol”, where certain rules are executed so that it can be sent. Needless to say, without said protocol this could not happen.
The technique that exists today has a high quality in terms of sending and personalizing emails, since several of us use it frequently.
What is the SMTP Protocol and what is it used for in computer networks?
SMTP is an email transmission system that, like TCP/IP, is integrated into Internet protocols. It is used with the intention that users can receive and send emails.
Usually used with POP3or with the Internet message entry system called “IMAP”, which is used to safeguard the messages that are inside the server’s mailbox, and then be able to download them constantly on the destination user’s server.
The aforementioned protocol is the norms that are used with the intention of authorize the transmission of information within a computer network, since SMTP itself is an Internet system.
There are cases where the SMTP It is only used for sending emails, as there are some limitations at a technical level to be able to accept them. This makes it necessary for the reception to use other types of Internet systems, such as the Internet Message Access Protocol (IMAP) or Post Office Protocol (POP).
The foregoing means that when an email is sent a spammer’s IP address is sharedwhich means that a circumstance occurs where the prestige of sending is damaged, which prevails in the adequate delivery of clean emails.
When the user sends an email using the SMTP protocol, what happens is that the email user, such as: Mozilla Thunderbird or Outlook Express sends a message through a server through SMTP. This server transports the message to the “Mail Transfer Agent (MTA)”through the “Domain Name System (DNS)” in order to obtain the “MX record”.
As soon as the message is accepted, it goes to a “Mail Delivery Agent (MDA)”, which may once again require the execution of SMTP with the intention of being able to deliver it to the email server. It is then, that through “IMAP” the receiving person obtains or recovers his message in his email account.
What is the SMTP server of the most important email services and how to use them for free?
Next, we will explain how the SMTP protocol works with the most common email services used by users:
Google Gmail
It is a completely free server that is used for those companies or people who do not handle a large volume of emails. It is an excellent option when you need to use Gmail and need to send chain emails.
Gmail itself has a very large space, which is why it is trustworthy when you want to use its services online. But has certain limits, since it only allows one hundred emails to be sent in an estimated time of 24 hours when they want to be reproduced through the SMTP protocol. This would result in 3,000 free emails for a period of 1 month.
The amount indicated above may be sufficient when your business is small, since In case you want to increase the fee, you will have to cancel the amount they charge for the payment service. The information you submit is available anywhere you require it.
Microsoft Outlook/Hotmail
This is one of the email services most used by Windows users, since in itself comes pre-installed on systems and helps people to communicate via messages with other people through the SMTP system, you can also access emails through the POP3 or IMAP protocols.
We must say that it is very complete, since you can enjoy antispam filters, shared mailbox, agenda organizer, task organization, contact filter, calendar, search for messages and be able to customize it your way. Likewise, it is programmed and used to work with the mail protocols that you prefer.
Yahoo!
The SMTP servers at Yahoo are used for outgoing email, which means that for your incoming mail Other types of protocols such as POP or IMAP are also used. You usually get these protocols in the settings tab where you add your Yahoo account.
These types of Yahoo protocol can be found on google whenever you want. They are also used with much more protection through an additional security layer that sits in your Yahoo account.
That is why when another user wants to access your email, it is blocked by this server in case the security you have for it is not standard. It is important that you know that It is not good that you activate the option “Less secure apps”because this can be a danger to your account and your personal information.
It is recommended that before configuring your email Check very well what each option is forand thus avoid any type of inconvenience with your account.
What are the main features of the SMTP network protocol?
Over the years, emails have been a means of communication for Internet users, one of the most used protocols being SMTP, which means “Protocol for Simple Mail Transfer”.
Among its essential characteristics we can indicate the following:
- It has text commands that are very easy to use.
- It is a network protocol used for electronic messages.
- It helps users stay connected through a server, since messages are sent and received.
- It has lines of text where the instructions of this system are specified.
- They provide the option of being able to exchange email messages via “TCP/IP hosts”.
- It is made up of 3 protocols that are standard and that are applied to emails, among which are: MAIL, DATA and RCPT
- It can be configured together with other protocols such as: POP3 or IMAP.
- Sometimes SMTP is only used for outgoing emails, while POP3 or IMAP are used for incoming emails.
- Through it there is the option of being able to synchronize a Smarthost server.
SMTP vs POP3 Which is better and how are they different?
Both protocols are used to manage emails on the Internet, but it should be made clear that each plays a different role in the dynamics sending and receiving emails.
Among the most outstanding differences we have the following:
- SMTP is used to send messages; while POP3 runs to receive them.
- With SMTP is the forwarding server; and with POP3 is the receiving server.
- SMTP sends email from the sender’s computer to the recipient’s mailbox; while with POP3 it can be recovered, as well as organize the emails that are inside the recipient’s mailbox to the destination computer.
SMTP vs. IMAP, which is better and how is each one different?
In general, emails are stored within the server of the email that has entered and have not been opened by the user.
However, when the user sends a message it goes up to the outgoing mail server using the SMTP protocol and goes immediately to the recipient’s inbox.
Unlike the IMAP server, where the message is found on the receiving device without being downloaded from the server, that is, when an email has been opened on a device, when entering from another it comes out as readand at the moment the user makes the request, it is necessary for him to be permanently connected to the Internet so that he can enter the email and see the message.
Since the messages do not need to be downloaded, they are much easier to read. Also here it is achieved sort the folders, so that any user can see them. It should be noted that when a user makes any changes to the server, other users can see it. It is important that the period with which the user accesses new messages is programmedsomething that can also be done manually.
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