how to send a safe mail - Email schnell und einfach verschlüsseln

There are ways to encrypt emails. But in general it is more complicated to setup than expected.

Often you can do that on your side, but the recipient will be overstrained to understand the crypto stuff to decrypt your message. So he will never read your encrypted message.

It was not worth the effort and encrypting mails will never ever become a standard thing!
Getting personal keypairs is the first difficult step.
(Solange es für den Empfänger zu kompliziert ist, wird er das verschlüsselte Mail nie lesen. Der erste komplizierte Schritt dabei ist, ein persönliches Schlüsselpaar zu erhalten.)

Solution:
send crypted mails, that recipient can decrypt without having to install and configure more than one easy softwaretool.

- use asymmetric keys - https://www.cacert.org/
   to encrypt mailbody in clipboard with gpg4win software - http://www.gpg4win.org (install with GPA option selected)
    first Line is ::, second line is anon-to: recipient@emailaddress.com
   at third line your text is starting
- open a new mailmessage and do not use subject field
   first line of body is ::, second line is anon-to:   - example: remailer@aarg.net or anon@paranoici.org
   third line is to copy encrypted clipboard into
- use a remailer to for the to-address  

The only complicated thing that remains is to explain the recipient, how he gets his key pair (for sending) and your public key (for reading) the first time. Afterwards he is familiar with this concept and can get everyones public key or explain the concept to other persons.

(maybe you can even send him your public key for the beginning. So he does not need to register himself for receiving it thru the CA)!

--- also see:

Tools for the paranoid: 5 free security tools to protect your data