I had kind of sensed this coming when they stopped taking new accounts a few months ago, but I will be sad to have to stop using my ZipLip account:
"Thank you for using ZipLip’s free secure mail service. We appreciate your patronage and wish to inform you that we will be discontinuing our service on June 30th, 2005. For various reasons, including new U.S. legislation which significantly impacts the individual’s privacy rights, ZipLip is no longer able to provide its free secure email services with any reasonable assurance of privacy and security, particularly in the context of a hosted service. We will revisit the service issue when our legislature reinstates our privacy rights.
Please make the necessary arrangements to use another Webmail service before June 30th. We are unable to offer any data migration services. We sincerely apologize for any inconvenience caused."