General Question - Smartermail - Log size

I run smartermail for a small company that gets a pretty decent bit of email per day. We still fit the small business category, but only barely during our busier months.

Im noticing our XMPP logs are getting pretty big--But I never paid attention to their size before.

Is it normal to have 25GB logs for XMPP for a small business? I would have figured our SMTP and Delivery logs would be larger, but XMPP is blowing them out of the park.