How to Send Email Using Telnet-wpn

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how to send Email using Telnet

software like Thunderbird and Outlook make sending email seem as if by magic. Well, until your email never arrives at its destination. How can you find out what really happens when you click on ‘send ‘? One option is to send a test message from the server of your provider’s messaging abroad with telnet, a small application that came with your computer. You can take an error message that does not have your e-mail software.

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connecting to the mail server with Telnet

  1. get telnet. If you use Mac OS or Windows XP, your version of telnet is ready for use. If you have Windows Vista, server 2008, 7, 8 or 10, you need to enable telnet before you use it.
    Send Email Using Telnet Step 1 Version 2.jpg
    • Windows Vista, server 2008, 7 and 8.1: click on the Start Menu and select Control Panel. Click programs, and then select “Turn Windows features or not.” This will bring up a list of Windows features. Scroll down the page until you see “Telnet Client” and put a check in this box. Click on ‘OK ‘.
    • Windows 10: right click on the start menu and select programs and features. Click on “Turn Windows features on or off” in the left menu. In the list that appears, put a check mark in the box “Telnet client” and click “OK”.
  2. open a terminal window. It’s a little different between Windows and Mac.
    Send Email Using Telnet Step 1 Version 2.jpg
    • any version of Windows: press, type cmd , then press.
    • mac: in the Finder, select “Applications”, and then “utilities”. Double-click the ‘Terminal ‘. you can also access Terminal by typing in the dashboard by clicking on it.
  3. open a telnet connection. Type telnet 25 where “” is the name of the SMTP Simple Mail Transfer Protocol () or your email provider (for example, smtp – and 25 is the port number used by the SMTP service.
    Send Email Using Telnet Step 2 Version 2.jpg
    • , you should receive a response like “220”
    • port 25 is the port for most mail servers, but some network administrators moving to another port SMTP 465, as (safe port) or 587 (for users of Microsoft Outlook) . Ask your administrator (or check your account information) to the correct port.
    • If you receive an error message such as “cannot connect to the host on port 25.0” and you are sure that port 25 is the correct port, the mail server probably encounters a problem.

edit send your Message

  1. greet the server. Reset or the steps are the same regardless of the operating system that you use. Type HELO where is the domain name where send you an email. Note that it has only one L to HELO. Press.
    Send Email Using Telnet Step 3 Version 2.jpg
    • , you should receive a response like “ Hello from 250 pleased to meet you.
    • If you receive no reply or a message error, try rather than EHLO HELO . Some servers prefer one to the other.
  2. enter the sender information “header.” Our mail of the type : , using your own e-mail address. Make sure that there is a space after mail from: . Press.
    Send Email Using Telnet Step 4.jpg
    • , you should receive the message that says something similar to “250 Sender OK.”
    • If you find an error, make sure you use an e-mail address with the same domain as the server. Your server may not allow you to send a message with your Yahoo address, for example.
  3. enter the e-mail address of the recipient. Type rcpt to: , where the e-mail address is that of your actual recipient. Press.
    Send Email Using Telnet Step 5.jpg
    • , you should see a message that says something in the sense of “250 OK-MAIL FROM”
    • If you receive an error, the email address you want to send a message to can be blocked.
  4. compose your message. You will need to enter a few commands to format and send the message.
    Send Email Using Telnet Step 6 Version 2.jpg
    • and and press.
    • on the next line, type subject: test and press twice. Replace “test” with your subject you want.
    • type your message. When you are finished, press.
    • type a single at the end of the message, and then press. You should see a message that confirms your message has been accepted or queued. This message varies between servers.
    • If you see any kind of error message, note and communicate with your email provider.
  5. type quit to exit telnet. Press.
    Send Email Using Telnet Step 7 Version 2.jpg

video edit

modify the advice

  • the same telnet telnet commands work with any software, even on Linux.
  • some (e.g. Hotmail) mail services do not allow users to send email through telnet.
  • some mail filter clients messages sent this way to spam letters a user. If you use this method to verify your account, make sure that you check the spam folder of the user's destination for the test message.
  • , you can also check your mails with telnet. See how to check Email with Telnet

edit warnings

  • using this method to send annoying or illegal messages could easily overtake you. System administrators monitor their outgoing mail servers.

change the things

  • , you will need client Internet connection Telnet
  • the address of a mail server to relay mail.
  • valid e-mail address.

change Sources and quotes

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