$output$ Being Truncated?

Hello,

I'm currently in the process of evaluating up.time, and I'm noticing that the result of the $OUTPUT$ variable in the email notification from my alert profile is being truncated.

I've configured a service that periodically polls a 'health check' method of our applications. In the event that the status message returned isn't the expected “Ok” value, I'm notified via email, with the output of the result in the email. However, this appears to be getting truncated at 255 characters. A sample of what $OUTPUT$ is returning is as follows:

As you can see, the full result is being omitted.

Is there a setting to adjust the amount of data returned by the $OUTPUT$ variable?

Thanks