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Manually Set Up E-mail with Mozilla Thunderbird for PC using POP3

For customers using a Windows operating system.

Follow the steps below to sync your 1&1 e-mail account with Mozilla Thunderbird on your PC using POP3 protocol.

Before you begin, you will need to have Mozilla Thunderdbird downloaded to your computer and Create an E-mail Account in Your 1&1 Package if you have not already.

Please note:
1&1 suggests the use of IMAP over POP3. For more information, please review the Difference Between POP3 and IMAP E-mail Accounts
Step 1
Launch Mozilla Thunderbird. If it is your first time launching Mozilla Thunderbird, the Mail Account Setup Wizard should appear and you may skip to step 4. Otherwise continue with the next step.
Step 2
From the Mozilla Thunderbird window, select Tools > Account Settings. Select Tools > Account Settings
Select Tools > Account Settings
Step 3
At the bottom-left, select Account Actions and then Add Mail Account. Select Account Actions > Add Mail Account
Select Account Actions > Add Mail Account
Step 4
Enter Your name, your full 1&1 Email address and your 1&1 e-mail address Password. Check the box for Remember password if you do not wish to enter your password every time when checking or sending e-mail. Then, click the Continue button. Enter the required information and click Continue
Enter the required information and click Continue
Step 5
Suggested settings may be provided for you. Be sure to select POP3 to view the suggested POP settings. In this example, the suggested settings are incorrect so we will click the Manual config button to enter the correct information. Select POP3 and click Manual Config
Select POP3 and click Manual Config
Step 6
Enter the following information in the appropriate field:
Field Input
Incoming Server hostname pop.1and1.com
Incoming Port Number 995
SSL drop-down menu SSL/TLS
Authentication drop-down menu Normal password
Outgoing Server hostname smtp.1and1.com
Outgoing Port Number 587
SSL drop-down menu STARTTLS
Authentication drop-down menu Normal password
User Name Your full 1&1 e-mail address

Click the Done button when you are finished. Enter the required information and click the Done button
Enter the required information and click the Done button
Step 7
Click the OK button. Click the OK button
Click the OK button
Step 8
You should now see your newly added account on the left-hand side of the Mozilla Thunderbird window as you account is now fully set up! View your account on the left
View your account on the left