Sometimes, you will encounter a pop-up message “Provider cannot be found. It may not be properly installed” when you import .xlsx file (Excel 2007, or Excel 2010) into 1and1Mail Address Book or Multi Account Manager.

Cause:

Your OS does not have the library to decode .xslx file.

Solution:

1. Install the new Microsoft library (Data Connectivity Components) from http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=23734

2. Save your .xlsx file as .xls file (Excel 97 – 2003 format) and then import the .xls file.

3. Save your .xlsx file as .csv file, and then import the .csv file.

1and1Mail 3.26 has fixed another 2 bugs:

• Create table error in non-English OS
• List index out of bounds error

The complete 1and1Mail changelog can be viewed here.

When you start a mass mailing task in 1and1Mail, sometimes you will encounter a pop-up message: "List index out of bounds (8)".

It is usually caused by your modification (import, add or delete) of emails in the address books that are being used by the ongoing task.

To resolve the issue, please restart 1and1Mail and start a new sending task. Make sure there is no change on the address book when the task is ongoing.

When you are sending mass emails using 1and1Mail, sometimes you will see a pop-up message saying that: “You have reached the daily sending limit. The limit may be imposed by your email service provider or your setting in 1and1Mail.” This is usually caused by the following:

1. You have reached the maximum sending amount you have set in 1and1Mail. To increase the amount, go to Account Manager, and modify the Sending Policy of that account. (1and1Mail suggests you not send more than 100 emails per account in 24 hours. If you want to send more, you can use other email accounts with 1and1Mail Personal Edition or Business Edition.)

2. You have reached the daily sending limit imposed by your email service provider (Gmail, Hotmail, Yahoo! Mail, AOL Mail, etc.). At this moment, your email account may be suspended and it will be recovered within 24 hours. You can verify this by viewing the Task Log. If the last few emails cannot be sent successfully, it is most likely your email accounts are temporarily suspended.

Most email service providers set a daily limit to prevent spamming. Regarding the daily sending limit and send rate of commonly used email accounts, please refer to here. If you want to go over the limit, you can use multiple email accounts and the Auto IP Switcher feature of 1and1Mail.

Nowadays, most email service providers keep a reputation score of each email account. Therefore, try to be conservative on the sending amount at the beginning to build up your reputation with the email service provider, and slowly increase it later.

We recommend you to use some affordable paid SMTP email services (e.g. GoDaddy) with 1and1Mail because they have a guarantee on the number of emails you can send out per day through their SMTP connection and high email deliverability.

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