The nation's largest direct marketer of auto insurance, Geico Direct, said yesterday that its customer service centers will use inbound and outbound desktop Internet faxes to process a full set of insurance documents, including quotes, issued policies, reinstatements, endorsements and renewals. Mail.com, New York, a provider of Internet messaging services for businesses, will provide the services. The partnership allows Geico Direct, Washington, to send and receive all fax documents through e-mail, saving the company time. The agreement pairs Mail.com's outsourced solutions with Geico Direct's document-intensive requirements. Mail.com eliminates the manual faxing of documents, focuses IT resources on its core business and implements changes immediately.