No, not really. It's hard to see how any service on top of Internet email will ever be more secure than gpg (with the possible exception of a scheme similar to gpg that ensures forward secrecy).
Mixmaster remailers might add a little something wrt meta data -- but not enough to trust that difference IMNHO (assuming a large part of mixmaster servers are run by, or grants access to, various NATO-allied intelligence services).
In essence, secret keys and trust in public keys needs to be managed by the participants -- no third party can meaningfully manage it.
Not that GPG is particularly secure in the real world -- but it is much more secure than not using any form of encryption.
As have been mentioned elsewhere, a scheme where a provider encrypts email for you can never be provably secure, because it's almost impossible to show that the session keys used to encrypt data aren't selected from some predictable subset of the keyspace (say 1M keys derived from every date stamp with hour precision, keyed up with creation time?).
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No, not really. It's hard to see how any service on top of Internet email will ever be more secure than gpg (with the possible exception of a scheme similar to gpg that ensures forward secrecy).
Mixmaster remailers might add a little something wrt meta data -- but not enough to trust that difference IMNHO (assuming a large part of mixmaster servers are run by, or grants access to, various NATO-allied intelligence services).
In essence, secret keys and trust in public keys needs to be managed by the participants -- no third party can meaningfully manage it.
Not that GPG is particularly secure in the real world -- but it is much more secure than not using any form of encryption.
As have been mentioned elsewhere, a scheme where a provider encrypts email for you can never be provably secure, because it's almost impossible to show that the session keys used to encrypt data aren't selected from some predictable subset of the keyspace (say 1M keys derived from every date stamp with hour precision, keyed up with creation time?).