To better understand the WebDAV protocol, please see the following examples. This is most common way. If your server requires TLS 1. In previous section , I introduced how to retrieve email over SSL connection.
In this section, I will introduce how to download email from your Gmail account in VB. Gmail POP3 server address is pop. It requires SSL connection on port, and you should use your Gmail email address as the user name for user authentication.
Gmail IMAP4 server address is imap. For example: your email is gmailid gmail. If you got authentication error, you need to enable Allowing less secure apps or Sign in using App Passwords. The following example codes demonstrate how to download email from Gmail account using IMAP4 protocol. However Google will disable traditional user authentication in the future, switching to Google OAuth is strongly recommended now.
Or you can generate App Passwords and use this app password instead of your user password. In previous section , I introduced how to download emails from Gmail account. In this section, I will introduce how to download emails from your Yahoo account in VB. Yahoo POP3 server address is pop. It requires SSL connection on port.
You should use your Yahoo email address as the user name for user authentication. For example: your email is myid yahoo. If you got authentication error, you need to enable Allowing less secure apps in your Yahoo account. The following example codes demonstrate how to download emails from Yahoo account using POP3 protocol. The following example codes demonstrate how to download emails from Yahoo account using IMAP4 protocol.
In previous section , I introduced how to download email from Yahoo account. It requires SSL connection on port;. For example: your email is liveid hotmail. Microsoft will disable traditional user authentication in the future, switching to Microsoft OAuth Modern Authentication is strongly recommended now.
The default POP3 server is outlook. The following example codes demonstrate how to download email from Offic account using IMAP4 protocol. Microsoft Office servers have been extended to support authorization via the industry-standard OAuth 2.
In this section, I will introduce how to retrieve email with event handler in VB. After Connect method, GetMail method or other methods are invoked, if you want to know the progress of the email receiving, you should use Event Handler. The following sample codes demonstrate how to use Event Handler to monitor the progress of email receiving.
In previous section , I introduced how to use event handler. If you want to leave a copy of email on the server, you should not call Delete method. However, there is a problem, how can you know if the email has already been downloaded? It is a 32bit integer and it is always unique in your email account life time. So we can use the integer as file name to identify if the email has been downloaded.
There is a little bit different in POP3 server. The UIDL is only unique in the email life time. That means if the email was deleted from the server, other email can use the old unique identifier. To solve this problem, we have to store the UIDL to a txt file and synchronize it with server every time. Please have a look at the following example code. With EAGetMail 4. This object provides an easy way to maintain UIDL between your server and your local client.
How does it work? Please click here to learn more detail. Please refer to MarkAsRead method to learn more detail. In this section, I will introduce how to download email with background service in VB. This often happens when user has a large quantity of emails to download or user downloads emails via a slow connection. By default the timeout is set to 90 seconds, it is easy to exceed this limit.
You may click here for details. Technically the timeout problem can be solved in this way; however, some users may get frustrated and press the stop button on the browser toolbar as he waits too long. Then you can use MailClient.
EAGetMail Service can download emails from this account in specified time interval. Please refer to Mail Pull for more detail. It demonstrates how to set a schedule to check a mailbox and insert non-delivery report to SQL database.
In previous section , I introduced how to download email with background service. In this section, I will introduce how to parse email in VB. After you received the emails to the local folder, we can use the following code to parse the email now.
The following code demonstrates how to parse from, to, cc, subject, body text, attachments of all emails file received by previous sample. The following example codes demonstrate how to use EAGetMail POP3 component to parse email sender, to, cc, subject, body text and attachments. In previous section , I introduced how to parse email. In this section, I will introduce how to verify digital signature and decrypt email in VB. Digital signature is always signed by sender certificate. First of all, the user MUST get a digital certificate for personal email protection from third-party certificate authorities such as www.
For example: from adminsystem. Therefore, you MUST receive an digital signed email from other people Most email clients such as outlook, outlook express will add the certificate to the Other People Storage automatically once an digital signed email is received before you can send encrypted email to this people.
EAGetMail Mail class provides an easy way to verify the email digital signature and get the signer certificate. The signer certificate only contains the public key, that means you can add this certificate to your user certificate storage so that you can use this certificate to encrypt email and send the encrypted email back to the sender, only the sender can decrypt the email. In previous section , I introduced how to verify digital signature and decrypt email.
In this section, I will introduce how to parse winmail. The winmail. To parse winmail. In EAGetMail 4. It is easier to parse TNEF attachment. Please have a look at the following example codes:. In previous section , I introduced how to parse winmail. After the email was converted to HTML page, you can browse it with web browser. In EAGetMail installer, there are many samples demonstrate how to use Web browser control to display the email, I suggest that you download it and have a try.
Some e-mail applications, such as Microsoft Office Outlook, employ a read-receipt tracking mechanism. A sender selects the receipt request option prior to sending the message. Upon opening the email, each recipient has the option of notifying the sender that the message was opened and read. However, there is no guarantee that you will get a read-receipt. Some possible reason are that very few e-mail applications or services support read receipts, or simply because users disable the functionality.
The notification takes the form of an email, and will tell you if your delivery succeeded Delivery Receipt , failed, got delayed Failure Report. For many email campaign applications, the very important task is detecting if the email is received by recipient or not. Parsing the delivery report is the common way to get the email status. NET class provides a built-in function GetReport to parse the report.
The following sample demonstrates how to parse the delivery-report. EML file. If there is any error, you can debug and fix it. EAGetMail Service is a common solution to process email on a regular basis, you can use above solution to download and process normal emails as well.
To retrieve emails from a specified folder, please use SelectFolder method; To move email from a folder to another folder, please use Move method; To copy email from a folder to another folder, please use Copy method; To upload an email file from local disk to server folder, please use Append method.
Please refer to ImapFull project for more detail. A MS Exchange shared mailbox is a mailbox that multiple users can use to read and send email messages. To access shared mailbox, please use MailServer.
Alias property. Support EmailArchitect. This is a simple class written in VB. It includes functions for extracting who the mail is for, who it is from, the subject, and the email body.
As it stands, there is no support for handling attachments. When I started to work with the. NET framework, one of the first things I noticed was its lack of support for downloading emails from a mail server. There is very good support for sending mail via the SMTP protocol, but nothing for receiving.
So i make my self and i want to give you this code without any charge With this code you download emails from pop3 server. It's very easy to understand IF you think you want any change change and if that change is good so pls send me mail of updating copy. Imports System Imports System.
Sockets Imports System. Text Imports System. GetBytes data. ToCharArray NetStrm. Write szData, 0, szData. Write SzData, 0, SzData. ReadLine If tmpString. Length - Header.
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