I have created a trigger which is calling an external web service to synchronize the leads creation/deletion process. When i delete/create leads the web service is working fine but when i mass upload it(mass import process..) or mass delete process (when it reaches its max limit..i.e. 250) it throws an exception and an error mail is generated with this error "System.CalloutException: IO Exception: Read timed out" error. I have also added the timeout_x property in my code to the max value(60000). But still its throwing the same error. Kindly help. Thanks in advance. Shaveta