You can follow the instructions in this article to set up Microsoft Outlook Express to connect to the mailbox using POP3. Please follow these instructions:

Step 1:

Start Outlook Express first. From the top menu, select Tools > Accounts.

Step 2:

Next, select Mail by clicking the Add button.

Step 3:

Next, show Name: Enter your mailbox address and press Next.

Step 4:

Address for email: Click Next after entering your email address in @.

Step 5:

Next, decide. I selected a POP3 server from the dropdown box as my incoming server. Enter the mail server details:

          – Incoming mail server
          – Outgoing mail server
          – Click Next

Step 6:

To configure Microsoft Outlook Express, enter the following login information:

          – Account name: Type your login @
          – Password: Type your mailbox password.
          – Click Next, then click Finish.

Step 7:

Choose the mail account name next, and then click the Properties button.

Step 8:

Switch to the Server tab.

           – In the Outgoing Mail Server check “My server requires authentication”.

Step 9:

Lastly, switch to the Advanced tab.

            – In the Server Port Numbers check “This server requires a secure connection (SSL)”.
            – Click OK.

Note: Please use port 26 or 587.