Manually Setting Up a Mail Basic Account in Thunderbird (Version 78.3.3)

This article explains how to manually set up an email account in the free email client Mozilla Thunderbird (version 78.3.3).

The setup steps described in this article were created with Thunderbird version 78.3.3 as an example. If you are using a different version, the actual steps may differ slightly. You can find instructions for Mozilla Thunderbird version 102.12.0 in the following article: Setting up an email account manually with Mozilla Thunderbird (version 102.12.0)
To determine the version of Thunderbird installed on your computer, click Help > About Thunderbird on the Thunderbird menu bar.

Enter your name, email address, and the password for your email address. Forgot your password?
Click Configure Manually.

Additional settings will be displayed. To configure your account for the IONOS email servers, enter/select the following settings:

	Type	Server Address	Port	SSL	Authentication
Incoming	IMAP	imap.ionos.co.uk	993	SSL/TLS	Normal password
Outgoing	SMTP	smtp.ionos.co.uk	587	STARTTLS	Normal password

Alternatively, if you want to retrieve your emails using POP3, enter the following settings for the incoming mail server:

	Type	Server Address	Port	SSL	Authentication
Incoming	POP3	pop.ionos.com	993	SSL/TLS	Normal password

Make sure your full email address has been entered in the Username fields and click Done.

Your account is now set up. To retrieve your emails, click on Inbox in the navigation bar on the left.

If you receive an error message when you try to set up your email account, see the following article for possible causes and solutions:

Email Client Setup Failure
If you receive a server error when sending email, open the account's settings in Thunderbird and change the port and SSL settings for the outgoing mail server.

The following are the alternative settings for the outgoing mail server:

	Type	Port	SSL	Authentication
Outgoing	SMTP	465	SSL/TLS	Normal password