Open House Invitations This campaign will mail a "For Sale By Owner" postcard to 100 homes surrounding your home. Our professionally designed, large 5 1/2 x 8 1/2 postcard will stand out in everyone's mailbox, giving you a competitive edge in the market! This campaign will take about ten (10) days to deliver to your neighborhood. The timeline depends on how quickly we receive the photo you'd like highlighted, the specs on your home, and your personal contact information. This service includes: Postcard Design Printing Postage