This guide walks you through adding your HOSTDOG email to Mozilla Thunderbird with IMAP. Thunderbird often auto-detects server settings, but if it does not, you can enter them manually using the reference below.

Prerequisites

Server settings reference

Setting Value
Incoming server (IMAP) mail.yourdomain.com
IMAP port 993 (SSL/TLS)
Outgoing server (SMTP) mail.yourdomain.com
SMTP port 465 (SSL/TLS)
Username Your full email address (e.g., info@yourdomain.com)
Authentication Normal password

For a complete list of all protocols and ports, see HOSTDOG email server settings.

Step 1:
Open Thunderbird and start account setup

Launch Thunderbird. If this is your first time, the account setup wizard appears automatically. Otherwise, go to Account SettingsAccount ActionsAdd Mail Account.

Step 2:
Enter your name, email, and password

Fill in the following:

  • Your full name — the name recipients will see (e.g., "John Smith")
  • Email address — your full email (e.g., info@yourdomain.com)
  • Password — the password for this email account

Click Continue.

Step 3:
Let Thunderbird detect settings (or configure manually)

Thunderbird will attempt to auto-detect the server settings. If it succeeds and shows IMAP with SSL/TLS on port 993 and SMTP with SSL/TLS on port 465, click Done to complete the setup.

If auto-detection fails or shows incorrect settings, click Configure manually and enter the values from the settings reference table above.

Tip: Make sure to select IMAP (not POP3) for the incoming protocol, and set SSL/TLS as the connection security for both incoming and outgoing servers.
Step 4:
Verify and finish

If you entered settings manually, click Re-test to verify the connection. Once Thunderbird confirms the settings are valid, click Done.

Your HOSTDOG email account is now configured. Thunderbird will start downloading your emails immediately.

Troubleshooting

Auto-detection finds wrong settings

Click Configure manually and enter the settings from the reference table. Make sure both the incoming and outgoing server addresses are mail.yourdomain.com (replace with your actual domain), with IMAP port 993 and SMTP port 465, both using SSL/TLS.

If Thunderbird shows a certificate warning, the SSL certificate may be issued for the server hostname rather than your domain. Click Confirm Security Exception to proceed — your connection is still encrypted. To avoid this, use the server hostname from your hosting welcome email if available.

  • If you can receive but not send: check the outgoing (SMTP) server is mail.yourdomain.com, port 465 with SSL/TLS. If that does not work, try port 587 with STARTTLS.
  • If you can send but not receive: verify the incoming server is mail.yourdomain.com, port 993 with SSL/TLS, and that IMAP is selected (not POP3).
  • For both cases, confirm the username is your full email address.
Need Help? If you are having trouble setting up your email in Thunderbird, our support team is available 24/7. Navigate to the HOSTDOG homepage and click the Log in button to open a support ticket and we'll assist you promptly.