Led by strength in its core business segments and growth in overseas markets, Pitney Bowes ( PBI) posted a 13% increase in second-quarter earnings, coming in above consensus estimates.The Stamford, Conn.-based mail services provider said net income rose to $134.7 million, or 58 cents a share, from $118.9 million, or 50 cents a share, in the same period last year. Excluding restructuring charges in both quarters, earnings rose to $145.1 million, or 62 cents a share, compared with $139.4 million, or 59 cents a share, in the last year. Sales rose 6.4% to $1.2 billion from $1.1 billion, driven by the company's Global Mailstream and Global Enterprise units, which each grew by more than 7%. Analysts had forecast earnings of 61 cents a share on revenue of $1.2 billion, according to Thomson First Call. The company said it experienced double-digit revenue growth in supplies and presort mails services as well as continued growth in small-business solutions. Further, Asian and European markets showed positive revenue growth. Pitney Bowes said it expects to earn 62 cents to 64 cents a share in the third quarter and reaffirmed full-year EPS expectations of $2.44 to $2.51; both ranges are in line with analysts' estimates. Shares of Pitney Bowes closed down 29 cents, or 0.7%, at $41.40.