Specifications include, but are not limited to: All respondents must acknowledge compliance with each requirement listed below in their written proposal. General - System will archive all intradomain and interdomain emails and attachments in a single, centralized archive - System supports "mail bagging"will retain emails for later delivery if district mail servers are unavailable - System must support communication using TLS - System must have the means to filter out emails that are spam or contain malicious content before being archived, whether internally or through integration with another message security service. - System must be able to retain emails fora minimum of 5 years - System must be able to archive Google Apps for Education and any other email system via SMTP - Archive access for all users must be through a webbased interface