How to open know pasword in open mail

I'm assuming you're asking how to open an encrypted email attachment or a password-protected email attachment in Mozilla Thunderbird, which is commonly referred to as "OpenPGP" or "PGP" (Pretty Good Privacy).

Here are the steps to open a password-protected email attachment in Mozilla Thunderbird:

Method 1: Using the built-in PGP support in Thunderbird

  1. Open the email with the attached file in Thunderbird.
  2. Click on the attached file to download it to your computer.
  3. Once the file is downloaded, right-click on it and select "Open With" > "Thunderbird PGP".
  4. Enter the password to decrypt the file. If you don't know the password, you may need to contact the sender to obtain it.

Method 2: Using a third-party PGP plugin

  1. Install a third-party PGP plugin like Enigmail or GPG Suite.
  2. Open the email with the attached file in Thunderbird.
  3. Click on the attached file to download it to your computer.
  4. Once the file is downloaded, right-click on it and select "Open With" > "Enigmail" (or the plugin you installed).
  5. Enter the password to decrypt the file. If you don't know the password, you may need to contact the sender to obtain it.

Method 3: Using a standalone PGP tool

  1. Download and install a standalone PGP tool like GPG4Win or Kleopatra.
  2. Open the email with the attached file in Thunderbird.
  3. Click on the attached file to download it to your computer.
  4. Once the file is downloaded, open the PGP tool and select "File" > "Open" to open the encrypted file.
  5. Enter the password to decrypt the file. If you don't know the password, you may need to contact the sender to obtain it.

Remember to always verify the authenticity of the sender and the integrity of the decrypted file before opening it.