Ruby发送邮件 - SMATP

一、简介

new 方法有两个参数：

server name 默认为 localhost

port number 默认为 25

start 方法有以下参数：

server - SMTP 服务器 IP, 默认为 localhost

port - 端口号，默认为 25

domain - 邮件发送者域名，默认为 ENV["HOSTNAME"]

account - 用户名，默认为 nil

password - 用户密码，默认为nil

authtype - 验证类型，默认为 cram_md5

SMTP 对象实例化方法调用了 sendmail, 参数如下：

source - 一个字符串或数组或每个迭代器在任一时间中返回的任何东西。

sender -一个字符串，出现在 email 的表单字段。

recipients - 一个字符串或字符串数组，表示收件人的地址。

二、示例

• 简单邮件

require ’net/smtp’
 
message = <<MESSAGE_END
From: Private Person <me@fromdomain.com>
To: A Test User <test@todomain.com>
Subject: SMTP e-mail test
 
This is a test e-mail message.
MESSAGE_END
 
Net::SMTP.start(’localhost’) do |smtp|
 smtp.send_message message, ’me@fromdomain.com’, 
 ’test@todomain.com’
end

• HTML邮件

require ’net/smtp’
 
message = <<MESSAGE_END
From: Private Person <me@fromdomain.com>
To: A Test User <test@todomain.com>
MIME-Version: 1.0
Content-type: text/html
Subject: SMTP e-mail test
 
This is an e-mail message to be sent in HTML format
 
<b>This is HTML message.</b>
<h1>This is headline.</h1>
MESSAGE_END
 
Net::SMTP.start(’localhost’) do |smtp|
 smtp.send_message message, ’me@fromdomain.com’, 
 ’test@todomain.com’
end

• 带附件邮件

require ’net/smtp’
 
filename = "/tmp/test.txt"
# 读取文件并编码为base64格式
filecontent = File.read(filename)
encodedcontent = [filecontent].pack("m") # base64
 
marker = "AUNIQUEMARKER"
 
body =<<EOF
This is a test email to send an attachement.
EOF
 
# 定义主要的头部信息
part1 =<<EOF
From: Private Person <me@fromdomain.net>
To: A Test User <test@todmain.com>
Subject: Sending Attachement
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary=#{marker}
--#{marker}
EOF
 
# 定义消息动作
part2 =<<EOF
Content-Type: text/plain
Content-Transfer-Encoding:8bit
 
#{body}
--#{marker}
EOF
 
# 定义附件部分
part3 =<<EOF
Content-Type: multipart/mixed; name=\"#{filename}\"
Content-Transfer-Encoding:base64
Content-Disposition: attachment; filename="#{filename}"
 
#{encodedcontent}
--#{marker}--
EOF
 
mailtext = part1 + part2 + part3
 
# 发送邮件
begin 
 Net::SMTP.start(’localhost’) do |smtp|
 smtp.sendmail(mailtext, ’me@fromdomain.net’,
 [’test@todmain.com’])
 end
rescue Exception => e 
 print "Exception occured: " + e 
end

• 多个附件

require ’net/smtp’
 
filename = "/tmp/test.txt"
# 读取文件并编码为base64格式
filecontent = File.read(filename)
encodedcontent = [filecontent].pack("m") # base64
filename2 = "/tmp/test2.txt"
# 读取文件并编码为base64格式
filecontent2 = File.read(filename2)
encodedcontent2 = [filecontent].pack("m") # base64
 
marker = "AUNIQUEMARKER"
 
body =<<EOF
This is a test email to send an attachement.
EOF
 
# 定义主要的头部信息
part1 =<<EOF
From: Private Person <me@fromdomain.net>
To: A Test User <test@todmain.com>
Subject: Sending Attachement
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary=#{marker}
--#{marker}
EOF
 
# 定义消息动作
part2 =<<EOF
Content-Type: text/plain
Content-Transfer-Encoding:8bit
 
#{body}
--#{marker}
EOF
 
# 定义附件部分
part3 =<<EOF
Content-Type: multipart/mixed; name=\"#{filename}\"
Content-Transfer-Encoding:base64
Content-Disposition: attachment; filename="#{filename}"
 
#{encodedcontent}
# 定义附件部分2
part4 =<<EOF
Content-Type: multipart/mixed; name=\"#{filename2}\"
Content-Transfer-Encoding:base64
Content-Disposition: attachment; filename="#{filename2}"
 
#{encodedcontent2}
--#{marker}--
EOF
 
mailtext = part1 + part2 + part3 + part4
 
# 发送邮件
begin 
 Net::SMTP.start(’localhost’) do |smtp|
 smtp.sendmail(mailtext, ’me@fromdomain.net’,
 [’test@todmain.com’])
 end
rescue Exception => e 
 print "Exception occured: " + e 
end