The company maintained its 2010 outlook, saying it expects volume to hold steady in the second quarter before rising through the second half of the year.

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Around 60% receive 10 or fewer messages on an average day, with nearly half saying that the volume of mail they receive has stayed the same over the past year.

BBC: US workers spared junk e-mails

Margins may be less, but as the saying goes, they can make it up on the volume.

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