What is the difference between the POP3 protocol from IMAP. The difference between the IMAP from the POP3 protocol. Causes to choke IMAP - Benefits

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IMAP and POP are two e-mail access methods. It is recommended to use IMAP if you need to check mail from several different devices (for example, telephone, laptop and tablet).

Imap

IMAP allows you to access email everywhere where you are from any device. When reading the message email Using IMAP, you do not download it and do not save on the computer; Instead, you read it from the email service. As a result, you can check email with various devices Anywhere in the world: on the phone, computer, friend's computer.

IMAP downloads a message only when you click it, and the attachments are not automatically downloaded. So you can check the messages much faster than using POP.

Pop

POP is associated with your email service and downloads all new messages from it. After downloading to a computer with Windows or Mac OS, messages are removed from the postal service. This means that after downloading the mailing to it, you can only contact of the same computer. If you try to refer to a message from another device, previously downloaded messages will be unavailable.

Sent mail is stored locally on a Windows or Mac OS computer, and not on mail server.

Many Internet service providers provide email accounts that use POP.

Web Mail Accounts or Postal Applications

Gmail, outlook.com, hotmail.com and icloud web post. Login B. account Web mail is performed on the Internet.

If you have a computer with Windows or Mac OS, you probably used a program, such as Outlook, Apple Mail or Thunderbird, to control email. Outlook, Apple Mail and Thunderbird is applicationsto work with email: programs installed on a computer to control email. They interact with the help of an email service, such as Gmail or Outlook.com, to receive and send email.

In the mail application you can add any email account to manage it from there. For example, you can add webmail account accounts to Outlook or Apple Mail (Gmail, Outlook.com, Hotmail.com, Aol and Yahoo) and post accounts provided by your organization.

Adding webmail accounts to postal applications such as Outlook, Apple Mail, Thunderbird

When you add an email account to the mail application, it is trying to configure access to IMAP without your participation.

If the email application fails to add your email account, usually it is due to the fact that the email account is configured to access the POP protocol. In this case, you need to contact the e-mail service provider and find out the name of the POP and SMTP server so that you can enter information in the mail application. As a rule, this information looks like this:

Incoming Mail Server (IMAP): IMAP. _LT_ service name\u003e. Com.

Incoming Mail Server (POP): POP.<service name\u003e .com

Outgoing Mail Server (SMTP): SMTP.<service name\u003e .com

"What is better to use, POP3 or IMAP" 08/27/2013

What is better to use, POP3 or IMAP? To answer this question, let's look at what it is and for what is meant:

POP3 is a protocol for receiving email messages.

IMAP is a protocol that supports reception, as well as the ability to manage the mail that is on the server.

If the POP3 protocol is selected in the settings of your client, then the following happens: the client program connects to the server, downloads new mail from your and breaks the connection. At the same time, the downloaded mail is deleted from the server. Pop is decrypted as POST Office Protocol, it's easier that it works as a mailbox in your entrance - you take the mail from it and there is no more it anywhere else but your computer. You can not see the letters sent, only accepted. You can not read this mail from another computer (smartphone \\ tablet \\ laptop) so-like on the server it is no longer there. Quite not good, agree. The fact is that when creating this protocol, each users did not have several computers, and the Internet connection was expensive and unstable. Therefore, it was important to quickly connect to the server, download all mail from your mailbox and break the connection. Nowadays, this protocol is used only when:

The mailbox uses only one person and only with 1 computer.
Access to mail is needed in the absence of an Internet connection.
Mail server resources are limited, and you cannot store a lot of data on it.

In all other cases, it is better to use IMAP. It provides a bilateral connection between the server and the client. This means that after connecting to the server, the actions performed at the same time are reflected on the server. IMAP became the first "cloud" protocol without even suspecting it. With this protocol, unlike POP3, you get access to mail from various devices at any time. You will not lose your posts, because they will always be on the server until you want to remove them. The main advantages of using IMAP are:

support for flags (important, read, etc.);
You can store messages on the server and copy them to your computer;
working with a multitude of mailboxes;
simultaneous access from different devices;
the ability to search on the server.

Making the conclusion from the above, it can be said that POP3 makes sense to use only if there is no possibility of a stable connection to the server, or the amount of memory on the server is very limited. In all other cases, the use of IMAP is recommended. And you should never forget about.

I am glad a new meeting with you, my dear readers. I am confident that many of you use the Internet, not only to search for entertainment content and interesting information, but also to communicate via email.

In the process of its setting, the question arises, what protocol you wish to use POP3 or IMAP. It's really important parameter And I propose to figure out the features of each of them.

What is the postal protocol?

These are the rules, or order on which the interaction between objects, programs and networks involved in the transfer of mail is carried out. In our case, participants this process are:

Post service. This is a company providing his server for storing correspondence, specialized software (including site), as well as email addresses to its customers. We are most interested in the mail server itself and access to it. It should also be understood that the e-mailbox implies the availability of an account and the place allocated to it (for storing messages) on the server;

Email Client - program to create and process mail. there is unique applications, For mailboxes of one company. They can successfully replace the corresponding mail web page that allows you to operate by mail directly on the server. Also there universal customers, To work with accounts created on different services. For example, or thunderbird..

Devices with access to mail. It can be a PC, tablet, smartphone and even push-button phone With internet access.

How does the mail delivery service work?

Now we will consider the E-mail mechanism, which will bring us closer to understanding the features of POP3 or IMAP. The user on his PC using the postal client creates a letter that sends to some electronic address. But it is not directly directly to the recipient (even if he is behind the next desktop) but only through the mail server. At the same time, the path of correspondence is conveniently monitored through conditional folders:

From the "outgoing" on the PC of the sender in "Outgoing" on the server in the sender account;
Next, the movement is carried out only on the server - from the "outgoing" sender to the "incoming" account of the recipient;
After connecting to the network of the destination device with the mail client, it starts sharing data with the mail server. And now from the "incoming" on the server, the letter falls into the same folder "Inbox" on the PC of the recipient.

So, my friends. When organizing email delivery for such a route there are two fundamentally different approaches.

In one case, the main storage location correspondence are devices (postal clients) of correspondence participants. And such an order is called POP3 or POST Office Protocol 3rd version. It uses port 110.
Another option is all mail (including files invested in it) is posted on the mail server, and occupies a physical place on it allocated to the user account. This procedure was designated as IMAP (Internet Message Access Protocol). How did you guessed this technology, in fact, is analog cloud storage. TCP protocol and port 143 are involved.

Justice is worth noting. POP3 with certain settings allows the use of server space, but only for storing incoming letters. There is no such possibility for outgoing correspondence. After all, it is understood that its sources and so there is on your device.

Now, when we know the principle of action of POP3 or IMAP, I propose to consider their pros and cons in practical application. This will give us the answer to the question, which is better to use for your mailbox.

Delivery of letters to the house

Your entire correspondence is on your computer. Important documents and nested files are available to you regardless of the internet connection. We assume that in some cases it is exactly what is required by the user;
It is not difficult to guess that in this case the intensity of appeals to the server is low. Moreover, the protocol itself was developed from the minimization of the load on the network - the connection occurs for a short time, only to move the server's emails on the "client" or send them. And here we see the advantage that is relevant for the conditions of low-speed or limited Internet traffic - the data channel is not overloaded and effectively performs its functions;
Organizers mail Service Also have their benefits from using POP. There is an opportunity to minimize the amount of disk space used on servers. And accordingly reduce their number and maintenance costs.

Disadvantage this protocol Obvious. Full work With mail is possible only from one device. For office, it is somehow permissible, but in other cases you need permanent access from different devices and advanced features when working with the server.

Our server is at your disposal, do with your post what you want

Therefore, as a more functional alternative, the IMAP protocol was developed. Let's estimate his dignity:

About the fact that the mail is in the cloud and is always available if there is an Internet, I have already spoken. When there is at least 3G in the smartphone, but at home or in Wi-Fi cafe, working with letters turns into pleasure. Always all at hand. At the same time, you, as well as on POP3, you can download Correspondence from the server and save on your PC or tablet.

For the ability to search for letters (by name or address of the sender, as well as simply, according to certain words) IMAP developers are decent than grateful from users whose mailboxes are constantly overflowing, but not fully studied.
You can easily operate with individual parts of letters and send them to other recipients. In general, the possibility of working with mail allows you to systematize it in various categories, archive, filter spam.
IMAP perfectly implemented work with different accounts.

Messages can be labeled with special flags, allowing planning and organize work with correspondence.

In fact, IMAP has much more. It all depends on what you need. For example, in order to transfer the file from one device to another, I just put it in a draft, which is available to me from any gadget. But we will not be distracted and continued. I hope you have already decided that choose for yourself, POP3 or IMAP. And now you need to know what to do next.

Where to get POP3 / IMAP settings?

And then you need to specify the corresponding parameters in the settings of the mail client. Usually it is necessary to register a type of account (POP3 or IMAP), separately an incoming and outgoing server, user data, server port number and other parameters.

Fortunately, all well-known services such as Gmail, Yandex Mail, Microsoft Exchange support both protocols. And of course provide relevant information on their sites. I think you will easily find it and independently handle the settings.

Now the "discussion" on the topic of POP3 or IMAP is finished. All arguments are at your disposal, and I consider my mission performed.

I wish you all all success and say goodbye to you, my dear readers.

Constantly checking email through the browser is inconvenient, so users who are confronted daily need to check mail and post-mail customers are used.

If you appeal to technical support With problems relating to email, one of the first questions will - how access to the mailbox is performed.

If you use the email client like Outlook, Outlook Express, Thunderbird, Mac OS X Mail or another modern email application, then the second question will be - which of the protocols (POP3 or IMAP) is used when receiving e-mail.

Each of these protocols have their own pros and cons, and knowing about them you can decide which of the protocols it is better to use in your case.

IMAP Mail Protocol (Internet Message Access Protocol).

Thanks to the widespread growth of Internet access points, the percentage of users using IMAP is constantly growing.

Causes to select IMAP - advantages.

All mail is stored on the server.
Each time installing a new email client, messages invariably arrive at the address and they are not required to move.
You are able to switch between Email by the Client and the Email Service (Webmail), and the mail will continue to come to both postal channels.
In case the computer breaks and you lose the data stored on the hard disk, your emails They will not disappear anywhere, as they are posted on the server.
The protocol simplifies access to email from the smartphone, because messages from the server are not deleted.

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Disadvantages IMAP.

Your mail is placed exclusively on the server, so in the absence of an Internet connection, you will not be able to download the messages already received. Some postal clients have additional parameterspermitted this problem (Mail will be received as soon as Internet access) will appear).
In case of serious breakage server equipmentYou risk losing part of the email (but you also risk getting into a similar situation when using POP3 to download messages to your own computer).
Using IMAP instead of POP3 in postal program You will see that postal directories are displayed differently. This is explained by the fact that the directories are not posted on the computer, but on the server.

Most modern webmail interfaces use IMAP to display email accounts.

POP3 Post Office Protocol, Version 3).

Unlike IMAP, which allows you to work with mail solely on the server using the POP3 protocol, you have the ability to download letters on hDD Computer and work with them already there. Some providers provide access to mail only on the basis of the POP3 protocol, ignoring the IMAP connections.

What is good POP3 - advantages.

Since messages are stored on the computer, then the letters are constantly at hand, even when you do not have access to the Internet.
Open attachments in the overwhelming part of postal clients has become much easier because the attachments are loaded simultaneously with the message.
Since messages are loaded to the hard disk of the computer, then disk space mailbox is limited only by sizes hard disk.

Disadvantages of POP3.

There are increased risks that malicious JavaScript, viruses and other malicious programs will affect the computer due to the fact that messages are stored on the hard disk.
If your computer has only one copy of electronic correspondence, and you do not perform data reservation properly, then you risk losing information as a result of a failure in hard work disk. In this regard, the servers are characterized by more reliable backups.
Mail clients using POP3 are allowed to configure in such a way that messages are stored on the server, but as content is grossing in your electronic drawer, postal application will need a lot of time to check the new mail (first postal client It is required to verify that it has already downloaded from the server, and then download new messages).

The POP3 protocol remains formerly demanded by the email protocol due to the ease of use of basic configuration and reliability. The more difficult the protocol or application, the more likely the occurrence of difficult-time situations requiring technical support intervention.

Make a choice.

When you decide which email protocol is suitable for you, it is assumed to proceed from your own needs and use the Email account.

Arguments in favor of IMAP:

You often travel and you need unhindered and convenient access To email.
You want to view electronic correspondence on the computer and on mobile phone or smartphone.
You often go to Email an account from home, from work and other places.

Arguments in favor of POP3:

You are worried about the security level and do not want your email to be stored on the server in an indefinite state. (This is a controversial moment and is interpreted by various people in different ways. This is not a recommendation, but only a point of view regarding the organization of security).
You have a very slow and unstable Internet connection.

This is not a complete list of examples when and what protocol to choose. In case you have any questions and you want to know our opinion in relation to your situation, then you can ask a question in the comments.

The difference between POP3 and IMAP Email accounts.

IMAP and POP3 - Tools used by your computer to gain access to e-mails placed on a remote server.

Why should I choose imap for your account?

IMAP (Internet Message Access Protocol) is an improved protocol that serves to receive email. This is a way to access email messages that are stored on the mail server.

The main advantage of IMAP over POP3 is the ability to save original email messages hosted on the mail server and connect to the same account from several seats.

If in the case of POP3 mail is loaded onto a computer or other device and deleted from the Mail server, IMAP loads a copy of the email. It is much more productive, since the Email account is configured for several computers and devices using IMAP, and the initial email messages Will be on the mail server.

In the case when a mobile phone or personal Computer - The main tool for checking mail and malfunctions of the postal client, turned out to be lost, stolen or stopped functioning, then emails will not disappear anywhere.

POP3 is the main drawback.

POP3 Abbreviated from Post Office Protocol Version 3. When you send a letter to your address, it is saved on the mail server until it is loaded via the email client (Outlook, Netscape Mail, your mobile phone and other) using POP3. After downloading the letter by the mail client, it is deleted finally from the server.

Simply put, this means that if you configured an email account to the POP3 protocol on the mobile phone, then the phone will load the letters and delete their server. If you configure the same email account in the email interface or on a computer, the mail will not be displayed because it has already been loaded onto a mobile phone.

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If some emails you get on one PC, and the rest are on the other, it can cause problems. Since the IMAP protocol is not used.

Wave Zimmerman's wife usually reads email on its PC. But when she tries to view the mail on the husband's computer, messages are lost.

I can assume that your wife's email client is configured to use the outdated POP3 protocol. He worked fine when most had one computer, not a smartphone. But since people use several computers and mobile devices For access to your mail, it is no longer so.

When you specify your postal client ( for example, Outlook.) Get mail, POP3 protocol moves new emails from the mail service server to your client, and deletes them from the server. If you check the mail on two computers using the POP3 protocol, some letters will be available on one computer, while other letters are only on the other.

Here are two ways to bypass this problem.:

Use the best protocol

Unlike POP3 IMAP protocol is used to synchronize the client software with the server. All emails will be available on both devices. When you delete a letter in your client, the IMAP protocol also deletes it from the server.

In Outlook 2016 ( which uses the POP3 protocol by default), It is impossible to directly change the account protocol. But you can create a new account and delete old:

In Outlook, go to the menu File - Account Settings - Account Settings:

A dialog box appears on the screen. Account settings" Click on the "Create" button;
In the master " Add an account"Select" Manual setting " or " Additional types of servers» ( in the lower left corner):

On the next page, select the POP or IMAP protocol. ( Yes, this is one of the options);
Specify all necessary information. Ensure that IMAP is selected as an account type;
Now you have two accounts that serve the same email address. Return to the "Inbox" folder and drag letters from the old account to the new one;
Return to the Accounts dialog box, select an old account, configured to POP3, and click on the Delete button.

Use a web client

If you check your mail through the postal service, and not through the PC program, downloading letters to a particular computer is not a problem.

You can also use a proven web service of email, such as Gmail. You will need to create a new Gmail account, but you can configure Gmail to send and receive letters from any other mail service by setting it on the IMAP protocol:

In Gmail, click on the tool icon located in the right upper corner and select "Settings";
Click the " Accounts and Import»;
In chapter " Send a letter as»Click on the button" Add another email address"And follow the instructions of the setup wizard;
Go to the " Check mail from other accounts (using POP3)", Click on the" button " Add Email Account POP3"And follow the instructions of the setup wizard.