American Express is always testing, but tried and true voucher packages still pull best in their acquisition efforts. Chief Marketer recently talked with Tom Mastrocola, director of subscription acquisition for American Express Publishing Corp., about trends in mail package design, postal concerns and list/database use.

Average email volume was up 16.2 in the second quarter of 2011 compared to the first quarter, according to the latest quarterly Email Trends and Benchmark Results report from Epsilon and the DMA's Email Experience Council.