使用net/imap连接到imap.google会产生错误

Question

我正在尝试使用net/imap连接到我的邮件服务器，我得到了以下错误

回溯(最近一次调用)：12:从/home/radoslav/.rbenv/versions/2.6.1/lib/ruby/2.6.0/net/imap.rb:1132:in <main>' 11: from imap.rb:5:inmethod_name‘10:从imap.rb:5:in new' 9: from /home/radoslav/.rbenv/versions/2.6.1/lib/ruby/2.6.0/net/imap.rb:1089:in初始化’8:从imap.rb:5:in tcp_socket' 7: from /home/radoslav/.rbenv/versions/2.6.1/lib/ruby/2.6.0/socket.rb:631:intcp‘6: from /home/radoslav/..rbenv/versions/2.6.1/lib/ruby/2.6.0/socket.rb:227:in foreach' 5: from /home/radoslav/.rbenv/versions/2.6.1/lib/ruby/2.6.0/socket.rb:227:ineach‘4: from /home/radoslav/.rbenv/versions/2.6.1/lib/ruby/2.6.0/socket.rb:641:in block in tcp' 3: from /home/radoslav/.rbenv/versions/2.6.1/lib/ruby/2.6.0/socket.rb:137:inconnect’2: from /home/radoslav/.rbenv/versions/2.6.1/lib/ruby/2.6.0/socket.rb:56：在/home/radoslav/.rbenv/versions/2.6.1/lib/ruby/2.6.0/socket.rb:1213:in‘_connect_nonblock：connect_internal' 1: from /home/radoslav/.rbenv/versions/2.6.1/lib/ruby/2.6.0/socket.rb:1213:inconnect_nonblock’_connect_nonblock:Networkfor2a00:1450:400C:C07:6d:143 (Errno::ENETUNREACH)

这是我使用的代码：

require 'net/imap'

def method_name
    imap = Net::IMAP.new('imap.gmail.com')
    imap.authenticate('LOGIN', 'my.name.here@gmail.com', 'mypasshere')
    imap.examine('INBOX')
    imap.search(["RECENT"]).each do |message_id|
        puts "#{message_id}"
    end
    puts "Hello"
end


method_name()

我怀疑这与系统有关，而非创业板本身，但无法在互联网上找到解决方案。

这台机器确实可以上网。

radoslav@radoslav-VirtualBox:~/Documents/Ruby/imap$ telnet imap.gmail.com 993
Trying 74.125.140.109...
Connected to gmail-imap.l.google.com.

Answer 1

基于错误回溯，它试图通过tcp端口143连接：

Network is unreachable - connect(2) for [2a00:1450:400c:c07::6d]:143

你通过993测试了它：

radoslav@radoslav-VirtualBox:~/Documents/Ruby/imap$ telnet imap.gmail.com 993

143是基于docs的imap的默认值，因此更改这一行以传递正确的端口号：

imap = Net::IMAP.new('imap.gmail.com', port: 993)