Adding Other Email Accounts in Your Mail Business Account

For 1&1 IONOS Mail Business Accounts

Following these steps will allow you to access all your other email accounts, such as Gmail, Yahoo Mail, iCloud, etc., within WebMail. This way you can access all of your email accounts in WebMail after logging in to your Mail Business account.

  • Log in to WebMail.
  • Click Add e-mail accountin the list of your folders on the left.
  • In the window that opens, enter the e-mail address and password you want to include and click Add.
  • Next select whether you want to enter the server settings manually or use the automatic setup. This works with many email accounts such as Gmail, Yahoo Mail etc. Click MANUAL if you want to specify the mail servers and connection settings yourself. Otherwise, choose ADD.

    Please note: If automatic setup is not possible, please enter the data manually. You can obtain these from your respective email provider.

Manual Setup

The following steps describe how to manually set up an email account. This is necessary, for example, if our system cannot set up your account automatically or if you want to choose security-relevant settings yourself.

Enter the following account settings:

Account Settings  
Account name The name of the email account to be displayed in Mail Business
Your name is optional.  
Email address The email address you are adding
Use Unified Mail for this account Check this box if you want to display the inbox of the additional account together with the inbox of the Mail Business account.
Incoming Server  
Server type Enter here whether the email account you want to include should be a POP or IMAP account.
Server Name Enter the server address of the email account for incoming emails here. Format example: The 1&1 IONOS IMAP server. For more information, visit your email provider's website.
Connection Security Enable this setting if the transmission is to take place via a secure (encrypted) connection. Some email providers already require this type of connection.
Server Port Default. If the retrieval of emails does not work with this setting, please ask your email provider for the correct port.
Username The username of the email account. Format example: Username for a 1&1 IONOS email address. Your email provider will tell you the correct username for your email account.
Password The access password of the email account
Outgoing Server (SMTP)  
Server Name Enter the server address of the email account for outgoing emails here. (Format example: The 1&1 IONOS SMTP server. You can find more information about this on the website of your email provider).
Connection Security Enable this setting if the transmission is to take place via a secure (encrypted) connection. Some email providers already require this type of connection.
Server Port Default. If sending emails does not work with this setting, please ask your email provider for the correct port.
Authentication Default. Individually changeable.
Username Default if you have not made any changes under Authentication.
Password Set by default if you have not made any changes under Authentication.

Click Save to add the account.

You have now successfully completed the integration of the email account into the Mail Business mailbox. You can now add more accounts by repeating these instructions.