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Manually Set Up E-mail with Mozilla Thunderbird for PC

For customers using a Windows operating system.

Learn how to sync your 1&1 e-mail account with Mozilla Thunderbird on your PC using the IMAP protocol.

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

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 > 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. Input your information and click Continue
Input your information and click Continue
Step 5
Suggested settings may be provided for you. Be sure to select IMAP to view the suggested IMAP settings. In this example, the suggested settings are incorrect so we will click the Manual config button to enter the correct information. Select IMAP and click Manual config
Select IMAP and click Manual config
Step 6
Enter the following information in the appropriate field:
Field Input
Incoming Server hostname imap.1and1.com
Incoming Port Number 993
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 appropriate information and click Done
Enter the appropriate information and click Done
Step 7
Click the OK button. Click OK
Click OK
Step 8
You should now see your newly added account on the left-hand side of the Mozilla Thunderbird window as your account is now fully set up! Your account is now set up
Your account is now set up