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Email guide for Mozilla/Thunderbird

Before you begin

It's essential that you have the following information to hand:

  • Your user name. (By default hosted domains have info@MyHostedDomain.com sales@MyHostedDomain.com and billing@MyHostedDomain.com accounts.) NB: Everything before the @ should be lower case.
  • Your e-mail address. For example jsmith@MyHostedDomain.com. NB: This is usually the same as your "user name".
  • Your assigned e-mail account password.

If you don't know all of this information, then speak to someone in your organization who will be able to advise you. Failing that, speak to us.

Remember - you will be substituting your domain name and e-mail address details for those used in the examples below.

The great news is that all Covisp.net website hosting customers have access to their own password-protected web page (Email Admin) where they can create, manage, and delete e-mail addresses. Also, all email addresses are available as POP3 or IMAP accounts, although we recommend IMAP for most users. So if you are the proud owner of a domain name hosted with Covisp, you can create a new email account on the server whenever you like.

Choose Your Method

METHOD 1 - For more experienced users

If you know your e-mail address (account name) and password, and you know that this account has definitely been set up on the server, then here's all the additional information you need to configure your e-mail software correctly:

  • Your incoming (POP3/IMAP) mail server is: mail.covisp.net.
  • Your outgoing (SMTP) mail server is exactly the same as your incoming server.
  • Your "Outgoing Mail Server" does not require authentication; as long as you have successfully logged in to check your mail the server is smart enough to know who you are. However, you should use a secure IMAP connection for checking your mail, and these directions assume this setting.
  • If you have trouble sending mail, check the Troubleshooting E-mail Problems section.

METHOD 2 - Step-by-step with screen shots

  • Open Mail
  • Open up Mozilla's Mail and Newsgroups (Window -> Mail & Newsgroups)
  • Open up the preferences (Edit -> Mail & Newsgroups Account Settings)
  • Click the 'Add Account' button, and then choose "Email account" and click "Next" (Or "->),
  • Choose "IMAP" and set the incoming server to "mail.covisp.net". If available, set the outgoing server as well.
  • Set the "Incoming user name" to your complete email address
Incoming username
  • Set the "Account Name" to whatever you want, and then click "Finish" on the next screen after verifying that everything is correct.


  • When you click "Finish", Mozilla will try to login to your email and will ask for a password. Click "Cancel" and open up the preferences (Edit -> Mail & Newsgroups Account Settings) instead. Click on "Server Settings" under the new account:
Server Settings
  • Make sure that "Use secure connection (SSL)" is checked and that "Use secure authentication" is not checked.


  • You may see the following screen when you first check mail. This is normal as the mail server currently has a "self-signed" certificate.
Certificate Error
  • Click "Examine certificate" and verify that the SHA1 fingerprint is
    then click "Accept this certificate permanently and "OK"
  • Now when Mozilla checks for mail, enter your password.
  • Congratulations, you're done!

If after all this work you still can't send/receive e-mail successfully, speak to the Technology Rep. in your organization (referring them to this page). Still no joy? We're here to help.

Troubleshooting E-mail Problems

Due to the massive amounts of abuse from spammers, an increasing number of ISP's are disabling the ability to send mail through someone else's SMTP server. If you receive an error message when attempting to use your 'Outgoing SMTP' server, it probably means your ISP has denied access to 'third party relaying'. To solve this problem, find your e-mail account properties (Tools -> Accounts -> Properties), and select the 'Advanced' tab.

  1. open up the preferences (Edit -> Mail & Newsgroups Account Settings) and click on "Outgoing Server (SMTP)"
  2. Change the 'Port' 25 to 587. In nearly all cases this will allow you to send mail via the covisp.net mailserver.