Look at it this way - The User buy a safe deposit box at the bank. The User walk into the vault with The Customer's key and a bank authority who has a key. They unlock the outside, The Customer unlock The Client's specific box. What those online services do is equivalent to giving The Client's key to the teller, and waiting in the lobby for them to bring The Customer's stuff out. Lavabit and Mega have solutions which are equivalent to forcing the teller to complete an obstable course between the vault and The Client but the end result is the same. The best solutions do not unencrypt The Client's data until it's in The User's hands. PGP is one way to accomplish this, but is not as secure via WebMail as it is when run on The Customer's local client. Due to how SMTP works, The Client can't eliminate the 'MetaData' logs, so this is where The User of company services want to start. These logs will contain a 'From' account, a 'To' address, time/date, and the IP of the machine the email was received from.
To read more:
I received Spam from VFEmail.net. I've signed up for VFEmail, but I have another question. Secondly, The User can access The User's email The Client's way. Use any Email client The User of company services like. There's no need to worry if it's compatible with VFEmail or not. Third, The User can use The User's own domain name. Any email that passes through Company's severs will be virus scanned. If The Client have a permanent connection, and a static IP Address, The Company can setup a relay for The User Basic 'per client' Relaying is included in each package. Website do not tolerate spam. Norton Anti-Virus (NAV) is a good solution for most desktops. In fact, The Company recommend it. In fact, it may NOT work with The Client's email client. VFEmail automatically updates virus definitions on a hourly basis. Since Email is currently the fastest way to spread a virus, The Customer would have to be sure The Client were up to date each and every time The Client of Vfemail started The Customer's PC.
To read more:
Vfemail Pros and Cons