These instructions apply to the current Thunderbird client on Windows, macOS, and Linux. Using IMAP for the connection type.
Before you begin
You'll need the following details.
| Setting | Information needed |
|---|---|
| Email address | Your complete email address |
| Username | Your complete email address |
| Password | Your mailbox password |
| Incoming server | mail.1stdomain.co.nz |
| IMAP port | Commonly 993 |
| IMAP security | Usually SSL/TLS |
| Outgoing server | mail.1stdomain.co.nz |
| SMTP port | Commonly 465 or 587 |
| SMTP security | Usually SSL/TLS or STARTTLS |
Add the account
- Open Thunderbird.
- Click the Application menu ☰ in the upper-right corner.
-
Select New Account, then Existing Email.
On a new installation, Thunderbird may open the account setup screen automatically.
- Enter:
- Your full name: The name recipients will see
- Email address: Your complete email address
- Password: Your email password or app-specific password
- Leave Remember password selected if this is a private computer.
- Click Continue.
Thunderbird will search its configuration database for the correct server settings.
Check the detected settings
Thunderbird should display the incoming and outgoing server information.
-
Select IMAP
IMAP is normally recommended because it synchronizes messages and folders across your computers, phones, and webmail.
- Check that the displayed server names match those in the table above.
- Click Done.
- If a provider sign-in page appears, enter your account credentials and select Allow or Accept to authorize Thunderbird.
Thunderbird will begin downloading your folders and message headers. A large mailbox can take some time to synchronize.
Manual configuration
If Thunderbird cannot find the settings, or the detected settings are incorrect, click Manual configuration.
Enter the same settings from the above table.
After entering the settings:
- Click Re-test.
- Confirm that Thunderbird reports the settings as valid.
- Click Done.
- Complete any provider authorization screen that appears.
Mozilla provides additional detail in its Manual Account Configuration guide.
Test the account
Once setup is complete:
- Click Get Messages and confirm that mail arrives.
- Send a test message to another address.
- Reply to that message.
- Confirm that sent messages appear in the Sent folder.