My secondary iCloud account is showing up as inactive in System Preferences with a message This is not your primary iCloud account. no details.

Hi PauletteApril,

Thanks for participating in the Apple Support Communities.

It sounds like your secondary iCloud account isn't behaving, and you'd like to receive email from this account.

You can forward the email to your primary iCloud account (or another email address) using the steps in iCloud: Forward all messages automatically.

Alternately, to troubleshoot the situation I'd recommend removing and re-adding the account in System Preferences > Internet Accounts:

OS X Yosemite: Add your Twitter, Facebook, and other Internet Accounts

Select the account you want to stop using, then do one of the following:

Remove the account and turn off its features: Click the Remove button .

1. Click the Add button , then click iCloud, Yahoo!, or another type of account you have.

   If you want to add a type of account that isn’t listed, such as your company or school server, click Add Other Account on the right, then select the type of account you want to add. If you don’t know the type of account, ask your network administrator.

2. Enter your account name, password, and other requested information, then click Set Up.

3. If the account you added has a list of features on the right, select the ones you want to use.

Cheers.

Hi PauletteApril,

Thanks for your reply. I'm glad everything is okay now.

Cheers.