Problems accessing mail on Mac Mail and Safari

Question

I'm having problems with accessing my email account, both through Mac Mail and Safari.  The domain appears to be blocked.  I receive the following error message when I click on the alert icon beside my inbox in Mail:
Unable to Connect
There may be a problem with the mail server or network. Verify the settings for account “***” or try again.
The server returned the error: The server “email domain” cannot be contacted on port 993.
In Safari, I receive a message that it can't find the server when I try the URL.
Both methods of accessing email work on my laptop on the same internet connection, so it appears to be a problem unique to this machine.
What should I do?
Will

Answer 1

Double-click anywhere in the line of text below on this page to select it, then copy it to the Clipboard (command-C):
wmail.speakeasy.net
Launch the Network Utility application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Network Utility in the icon grid.
Step 1
Select the Lookup tab and paste into the address field (command-V). Press return. Post the output that appears below – the text, please, not a screenshot.
Step 2
Select the Ping tab and do the same. Please enter the same input as you did in Step 1. Don't use the output of Step 1 as input to Step 2.
Important Note
Some web browsers and mail clients will automatically convert a domain name such as "www.example.com" to a clickable URL, such as http://www.example.com. That will interfere with the test. If necessary, edit the input in the Network Utility window to remove any added characters.