pop3 | 易学教程

POP3、SMTP和IMAP协议

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 1. POP3 POP3 是PostOffice Protocol 3的简称，即邮局协议的第3个版本,它规定怎样将个人计算机连接到Internet的邮件服务器和下载电子邮件的电子协议。它是因特网电子邮件的第一个离线协议标准,POP3允许用户从服务器上把邮件存储到本地主机（即自己的计算机）上,同时删除保存在邮件服务器上的邮件，而POP3服务器则是遵循 POP3协议的接收邮件服务器，用来接收电子邮件的。 2. SMTP SMTP 的全称是“Simple Mail Transfer Protocol”，即简单邮件传输协议。它是一组用于从源地址到目的地址传输邮件的规范，通过它来控制邮件的中转方式。SMTP 协议属于TCP/IP 协议簇，它帮助每台计算机在发送或中转信件时找到下一个目的地。SMTP 服务器就是遵循 SMTP 协议的发送邮件服务器。SMTP 认证，简单地说就是要求必须在提供了账户名和密码之后才可以登录 SMTP 服务器，这就使得那些垃圾邮件的散播者无可乘之机。增加 SMTP 认证的目的是为了使用户避免受到垃圾邮件的侵扰。 3. IMAP IMAP 全称是Internet Mail Access Protocol，即交互式邮件存取协议，它是跟POP3类似邮件访问标准协议之一。不同的是，开启了IMAP后

How to read latest email using pop3 c#

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问题 I want to read emial from my gmail account. I am using "OpenPop.Pop3" to read email from my gmail account, I am using below code :- using OpenPop.Pop3; public DataTable ReadEmailsFromId() { DataTable table = new DataTable(); try { using (Pop3Client client = new Pop3Client()) { int messageCount = client.GetMessageCount(); for (int i = messageCount; i > 0; i--) { table.Rows.Add(client.GetMessage(i).Headers.Subject, client.GetMessage(i).Headers.DateSent); string msdId = client.GetMessage(i)

Reading Mail in Windows form Using C#

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问题 I have tried to read my email in windows form . That is it should show my first message in email inbox. First i tried using my yahoo account . Code works fine but its not showing my message . Just am getting this result : " +OK hello from popgate-0.8.0.450444 pop113.plus.mail.bf1.yahoo.com ". Here is my code: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks;

Retrieving AlternateView's of email

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问题 I can't seem to retrieve the AlternateView from System.Net.Mail.AlternateView. I have an application that is pulling email via POP3. I understand how to create an alternate view for sending, but how does one select the alternate view when looking at the email. I've have the received email as a System.Net.MailMessage object so I can easily pull out the body, encoding, subject line, etc. I can see the AlternateViews, that is, I can see that the count is 2 but want to extract something other

Python: Retrieving only POP3 message text, no headers

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问题 I'm trying to make a Python program that retrieves only the body text of an email without passing headers or any other parameters. I'm not sure how to go about this. The goal is to be able to send basic commands to a program via message text. What I have now is this: import poplib host = "pop.gmail.com" mail = poplib.POP3_SSL(host) print mail.getwelcome() print mail.user("user") print mail.pass_("pass") print mail.stat() print mail.list() print "" if mail.stat()[1] > 0: print "You have new

PHP - How to access and retrieve important data from a pop3 email account?

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问题 I am trying to create a php program that will check for the presence of any emails with a keyword in the subject line, then it will retrieve the contents of the email and pass it to a variable. Can anyone provide me with some helpful information on how to accomplish this? 回答1: If you can use imap protocol better, you can try the imap functions of PHP <?php $imap = imap_open("{mail.yourserver.com:143}INBOX", "username", "password"); $message_count = imap_num_msg($imap); for ($i = 1; $i <=

Email Monitor Synchronization

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问题 I'm writing a C# program that monitors a dedicated Gmail account using POP3 for specialized command emails and reacts appropriately. For maximum reliability, I will run this program on several computers throughout the country. I currently have a race condition where two instances of the program can read the same message before one of them deletes it, causing the message to be processed twice. How can I make sure that each command is processed exactly once? Gmail's POP3 access used to only

Javamail get all emails form a specific sender

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问题 In java I need to get all emails from a specific sender. There are couple of ways to do that as shown here: http://www.codejava.net/java-ee/javamail/using-javamail-for-searching-e-mail-messages But I need to have the process to be done on gmail side. It is not fine for me to read all emails and then decide which one I should proceed. Also in http://alvinalexander.com/java/javamail-multiple-search-terms-pop3-mailbox-yahoo you can search message body which it is great, but what about the sender

parsing email contents from poplib with email module (PYTHON)

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问题 PYTHON VERSION == 3.5 code: import getpass, poplib, email Mailbox = poplib.POP3_SSL('pop.googlemail.com', '995') Mailbox.user("email_here@gmail.com") Mailbox.pass_('password_here') numMessages = len(Mailbox.list()[1]) for i in range(numMessages): info = b" ".join(Mailbox.retr(i+1)[1]) msg = email.message_from_bytes(info) print(msg.keys()) output: ['MIME-Version'] ['MIME-Version'] ['MIME-Version'] ['Delivered-To'] ['Delivered-To'] ['Delivered-To'] ['Delivered-To'] ['Delivered-To'] ['Delivered

How to use POP3 over SSL in C

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问题 I would like to know and understand the steps involved in fetching mail from pop3 server using plain c language 回答1: Steps: Connect to the server's port (usually 995) using OpenSSL Verify the certificate Send regular pop3 commands over the SSL socket you just opened. (LIST, RETR and so on) Retrieve the responses Close the socket Or use a library that does all of the above for you 回答2: Use one of the thousands of libraries that already exist such as libspopc. 回答3: Use a library such as