‘The advertisement-supported site, which lets users design and
send free e-mail greeting cards, began getting reports of
difficulties late last month. This was “at or about the same time
Microsoft (Nasdaq:MSFT) created its competing Web site for
electronic greeting cards”‘
‘The lawsuit alleges that a version of Microsoft’s Internet
Explorer browser contains a “filter” that “relegates Blue
Mountain’s greeting cards to a junk mail folder for immediate
discard, rather than receipt by the intended recipient.”‘