You can most definitely mail properties outside of Pebble. Here's how...
Our mailers start at $0.50 per letter. No minimums, limits, or additional fees. Read here for detail print and mail rates.
Watch this video on how to generate your documents with the Pebble template editor.
Each campaign has a daily send count, and this determines the number of mailings that will be sent each day once you activate your campaign. Mailers go out everyday at 2:00am UTC (7pm Pacific, 8pm Mountain, 9pm Central, and 10pm Eastern)
Pebble lets you easily send buyer & seller lead information to any other system.