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Packed files frequently contain viruses, some of which are encrypted. These files often evade virus scanners and go undetected.
E-mail pre-processing ensures that all incoming e-mails are first decrypted and unpacked by the server. Subsequent spam and virus filtering identifies unwanted e-mails and places them in quarantine. Checked e-mails can then be automatically re-encrypted and forwarded.
Outgoing e-mails can be signed, furnished with a legal disclaimer, packed, automatically encrypted, and sent.
E-mails are centrally and automatically encrypted on the mail server, based upon address. The mail server uses PGP, GnuPG, or S/MIME, all of which can also be used in parallel operation. Keys can be managed on the server without a cumbersome public-key infrastructure (PKI), and digital certificates can be easily created and updated.
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