Step-by-step instruction: how to use Outlook through a proxy

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To check the mail in Outlook through a proxy, you can use one of two possible options: using an HTTPS proxy or a SOCKS proxy. Step-by-step instructions for each of them are given below.

Video guide for setting up a proxy inOutlook

1 way: log into Outlook via HTTPS proxy

To use “clean” HTTP proxies that do not support the CONNECT method for checking mail through Outlook will fail. You need to use HTTPS proxy.

Step 1: Configure Port mapping to receive mail

First, you need to configure Port mapping (data forwarding) to receive mail. Follow the step by step instructions:

  1. Install the HTTPort program or any other analog for organizing port mapping.
  2. Run the program.
  3. Select the “Port Mapping” tab.
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  5. Press the “Add” button.
  6. Enter the name of the connection (for example, “mymail”). To do this, once click on the default name.
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  8. Enter in the “Local Port” the local port number for communication (for example, 9110).
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  10. Enter the name of your POP3 server in the “Remote Host” field (for example,
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  12. Enter the port number where the line “Remote Port” (usually its number is 110).

Step 2: Configure Port mapping to send mail

The next step is to configure the port mapping to send mail:

  1. In the HTTPort program, select the "Port Mapping" tab.
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  3. Click “Add".
  4. Write what the new link will be called (for example, “mymailsend”).
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  6. Enter in the “Local Port” the local port number for communication (for example, 9025).
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  8. Enter the name of your SMTP server in the “Remote Host” field (for example,
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  10. Enter the port number where the line “Remote Port” (usually its number is 25).

Step 3: Last settings and program launch

The third stage is to specify the proxy data that you are going to use in the program and start the program. For this:

  1. Go to the "Proxy" section.
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  3. Where “Hostname or IP address” enter the name of the proxy.
  4. Where “Port” enter the port.
  5. Click “Start” to start the program.
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Step 4: configure Outlook

To complete the task, it remains only to configure the process of receiving mail in Outlook. For this you need:

  1. Go to your Outlook email settings.
  2. In the fields where you want to enter the POP3 and SMTP servers, enter:
  3. Go to the advanced settings - the "Advanced" tab.
  4. Where you need to enter the port for POP3, enter 9110.
  5. Where you want to enter the port for SMTP, enter 9025.

2 way: go into OUTLOOK through SOCKS proxy

To use the SOCKS proxy for an email client, you need to organize Port mapping or perform Outlook “socks”. The principle of performing Port mapping is described above. Let’s take a closer look at “socksification”.

What is co socksification and why is it needed

Due to the fact that the SOCKS protocol can send any TCP through itself, including POP3, SMTP, you can easily use SOCKS proxies even in programs where work with proxies is not provided. To do this, you will only need to use a “socksifier” like SocksCap.

It will help make the program use a proxy server if it does not know how to do this by default or connects only with an HTTP proxy.

Step-by-step instructions for “socksification”

In order to perform “socksification” you need to follow this instruction:

  1. Install SocksCap.
  2. Run the program and click “New”.
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  4. Click “Browse” and select the startup file for the program that you want to “socksify” (for example, Outlook Express) and press “OK”.
  5. Go to the "File" menu and click on "Settings".
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  7. Enter the address and the port of socks proxy.
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  9. Choose the proxy server type: Socks5 or Socks4.
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  11. If it is necessary, set the username and password (tick Username / Password when choosing SOCKS5) and confirm the setting with the “Apply” and “OK” buttons.

From now on, to start Outlook Express using the SOCKS proxy, you will need to go into the SocksCap program and 2 times click on the name of this mail client.

Now you know how to configure the proxy in Outlook. Choose the appropriate type of proxy server and try.