smtp

What RFCs need to be considered in developing an SMTP client?

由 落爺英雄遲暮 提交于 2019-12-21 16:55:10
问题 In theory, the set of Request For Comments (RFC) contain everything that a developer needs to know to build an SMTP client. However, it is not always easy to know which RFCs need to be considered and which ones can be ignored. Does anyone have an RFC roadmap to steer developers through this? By RFC roadmap, I mean: A complete list of RFCs that need to be read and understood, in order to develop an SMTP client. An indication of which RFCs no longer need to be considered, because they have been

Indy 10 - IdSMTP.Send() hangs when sending messages from GMail account

由 别说谁变了你拦得住时间么 提交于 2019-12-21 16:18:46
问题 I am trying to send an e-mail using gmail account (Delphi 7, Indy 10) with these settings: TIdSmtp: Port = 587; UseTLS := utUseExplicitTLS; TIdSSLIOHandlerSocketOpenSSL: SSLOptions.Method := sslvTLSv1; Everything seems to be set ok. I get this response: Resolving hostname smtp.gmail.com. Connecting to 74.125.77.109. SSL status: "before/connect initialization" SSL status: "before/connect initialization" SSL status: "SSLv3 write client hello A" SSL status: "SSLv3 read server hello A" SSL status

Python使用QQ邮箱发送邮件报错smtplib.SMTPAuthenticationError

由 你离开我真会死。 提交于 2019-12-21 07:36:05
最新在学习Python的基础入门系列课程，今天学习到使用python 的内置库smtplib发送邮件内容。 使用Python发送邮件步骤简单： 创建SMTP连接 使用邮箱和密码登录SMTP服务器 创建邮件内容对象EmailMessage， 并使用set_content方法设置邮件内容 调用sendmail方法发送邮件 具体代码如下： import smtplib from email.message import EmailMessage # 定义SMTP邮件服务器地址 smtp_server = 'smtp.qq.com' # 邮件发送人邮箱 from_addr = '******@qq.com' # 自己的邮想 # 邮件发送人邮箱密码 password = '******' # 邮箱密码 # 邮件接收人 to_addr = '******@163.com' # 测试接收邮件地址邮箱 # 创建SMTP连接 conn = smtplib.SMTP_SSL(smtp_server, 465) # 设计调试级别 conn.set_debuglevel(1) # 登录邮箱 conn.login(from_addr, password) # 创建邮件内容对象 msg = EmailMessage() # 设置邮件内容 msg.set_content('您好

Rails EOFError (end of file reached) when saving a devise user

由 删除回忆录丶 提交于 2019-12-21 06:58:09
问题 I'm getting this error in production when trying to create a user (i'm using the devise gem). EOFError (end of file reached): I hit this problem before and it was due to my smtp settings using zoho mail. I believe my configuration below is what fixed the problem: ActionMailer::Base.delivery_method = :smtp ActionMailer::Base.smtp_settings = { :address => "smtp.zoho.com", :port => 465, :domain => 'example.com', :user_name => 'user@example.com', :password => 'password', :authentication => :login

how to send email with python directly from server and without smtp

由 冷暖自知 提交于 2019-12-21 06:49:10
问题 I'm php programmer and with php you can send email with server directly, for example this code send email to client: <?php $to = 'nobody@example.com'; $subject = 'the subject'; $message = 'hello'; $headers = 'From: webmaster@example.com' . "\r\n" . 'Reply-To: webmaster@example.com' . "\r\n" . 'X-Mailer: PHP/' . phpversion(); mail($to, $subject, $message, $headers); ?> but in python you have to use smtplib and gmail or hotmail servers for sending email. I wonder is there anyway to send email

Is SMTP based on TCP or UDP?

由 痴心易碎 提交于 2019-12-21 06:47:49
问题 Is SMTP based on TCP or UDP ? I really can't confirm it . In my opinion, SMTP should be based on UDP, but someone told me that is must be TCP. 回答1: In theory SMTP can be handled by either TCP, UDP, or some 3rd party protocol. As defined in RFC 821, RFC 2821, and RFC 5321: SMTP is independent of the particular transmission subsystem and requires only a reliable ordered data stream channel. In addition, the Internet Assigned Numbers Authority has allocated port 25 for both TCP and UDP for use

Unknown SMTP host

由 岁酱吖の 提交于 2019-12-21 06:26:35
问题 I am running a Java web application using tomcat to send generated reports via emails to the users. I am able to send the emails but after few hours the server stops sending emails, with the following error. javax.mail.MessagingException: Unknown SMTP host: mail.mydomain.co.uk; nested exception is: java.net.UnknownHostException: mail.mydomain.co.uk at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1970) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:642)

sendmailR: Submit encoded message to local SMTP server

由 吃可爱长大的小学妹 提交于 2019-12-21 04:58:37
问题 I need your help in order to send email message that includes text in Greek, from within R, using the function sendmail {sendmailR}. I tried using the function iconv , like that but it didn't work subject <- iconv("text in greek", to = "CP1253") sendmail(from, to, subject, msg, control=list(smtpServer="blabla")) The mail arrives immediately but the greek characters are unreadable. Any ideas? EDIT Another question that came up: The second argument to accepts one recipient. What if want to send

Using tls-extra for simple smtp

由 时间秒杀一切 提交于 2019-12-21 04:18:08
问题 I am trying to write a simple script to send a mail via my gmail account. But I am a beginner so it is not that simple. I tryed google but exept for hackage, there is no help or examples at all. The problem is that I did not find the way to use tls-extra(or tls) to initiate the STARTTLS exchange. Ok, here is the code: import Network import Network.TLS.Extra import System.IO import Text.Printf server = "smtp.gmail.com" port = 25 --that has to chage, I think forever a = a >> forever a main =

Sending emails in web applications

由 久未见 提交于 2019-12-21 04:04:48
问题 I'm looking for some opinions here, I'm building a web application which has the fairly standard functionality of: Register for an account by filling out a form and submitting it. Receive an email with a confirmation code link Click the link to confirm the new account and log in When you send emails from your web application, it's often (usually) the case that there will be some change to the persistence layer. For example: A new user registers for an account on your site - the new user is
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