To set up your @escwireless.com email in Thunderbird:

(for other domains hosted at ESCWireless follow the same instructions but substitute your domain name, for example replace "escwireless.com" with "etiw.net" everywhere)

Select the menu item "Account Settings" from the "Edit" menu.

In the "Account Settings" window that opens, click "Add Account" to start the "Account Wizard".  (If this is the first time running Thunderbird it will usually start this for you)

Select "Email Account" and click "Next". Enter your name and your full email address then click "Next".

Enter "mail.escwireless.com" for both incoming and outgoing mail servers and click "Next".  (Note: If you already have another account configured, Thunderbird might not ask for the outgoing server here - if not just continue and we'll address it later)

Enter your full email address for "Incoming user name" and click "Next", then give the account a meaningful name (for your convenience) and click "Next" again.

At this point you should be finished, unless the "outgoing server" was missing from step 2.  If that was the case, then in the "Account Settings" window click on "Outgoing Server (SMTP)"  then click "New" and fill in the form with a "Description" (for your convenience), "Server Name" (mail.escwireless.com), put a check in the box next to "Use name and password" and enter your full email address in "User Name".  Also select "no" for "Use secure connection".  Double-check everything then click "OK".

Then (if you followed the extra "Outgoing Server" step above) you need to  click on your email address in the left-hand list and select the newly-configured "Outgoing Server" in the drop-down box to the right.

Finally, click "OK".  Everything should be ready at this point.  The first time you click "Get Mail" it will ask for your password.  You can check off "Use password manager to remember this password" and it will do so (as long as the first connection succeeds) otherwise it will ask for your password each time.

If you receive an error message when you try to get or send mail then see "email troubleshooting" for additional help.