Why does a message keep showing "The server responded with an error. The request for account "my email address" failed. The server responded with "400" to operation CalDAVCalendarSplit DualTypeCalendarQueueableOperation. Any help appreciated.
iMac, OS X Mavericks (10.9.5)
Greetings UKDane2,
Thanks for using the Apple Support Communities!
I understand that you are receiving a server alert for an email address for a Calendar account on your Mac running OS X 10.7 Lion. To troubleshoot this situation, please work through the following steps:
1. Select the Apple logo from the top left corner of your Mac
2. Open System Preferences
3. Open Mail, Contacts & Calendars
4. Select the account for the email address that is given in the alert in the left hand side bar
5. Select the minus (-) sign from the bottom portion of the left hand side bar
*If you do not use this account, you can stop here
6. Add the account back by selecting the plus (+) sign in the left hand sidebar
Further instructions for adding the account can be found in the Set up Mail section from the following article.
Mac Basics: Use Mail on your Mac - Apple Support
Have a great day!
Why does a message keep showing "The server responded with an error. The request for account "my email address" failed. The server responded with "400" to operation CalDAVCalendarSplit DualTypeCalendarQueueableOperation.
