Originally Posted by bisleri
Request a new service book if the BlackBerry Internet Service is used for email message redirection.
If new service books do not resolve the issue, clear the service book database.
The BlackBerry smartphone is attempting to send email messages using the service book of an email account that is no longer integrated with the BlackBerry Internet Service account. Re-integrate the email account to the BlackBerry Internet Service account.
Once again, you're giving incorrect advice bisleri.
Google no longer offers the option to sync calendars over the air to BlackBerry devices. If this is a feature you really need, you will need to switch to Windows Phone, iPhone, or Android.