Disposition: Cold call or send postcards?

[Brian Kempler]

I have a few lists I've gathered: Out of state owners (4.800 names), cash sales (2,600), and 14 local trustee sales (1,000 statewide). 

The 14 trustee buyers should be easy to cold call. As for the rest, do you guys typically take the time to make the calls as the first point of contact, or just send a postcard to everyone?

SMS and email are also options by the way. Property Radar doesn't show the email though. I also plan to market my deals on Craigslist and Facebook groups (I'm doing this virtually).