Hi!

For a customer i have to implement "on the fly" encryption for attachments. Means:

1) Send Mail to Customer

    - Postfix receive email by smtp from local sender

- Check if Recipient is in DB. If not => Forward message by smtp to customer

- If customer is in DB, detach Attachments, create a encrypted zip-Archiv (password comes from db), re-attach it to email and forward it by smtp to customer

Is there a place where i can find more informations about doing it or exists there a "ready" solution ?

Thanks a lot!

Best regards,
  Kai.

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