However, deleting the Mailvelope extension in Chrome or Firefox will also delete the keystore from your file system. This ensures that your sensitive information remains inaccessible to your webmail provider. Even if you enter an email address in the Mailvelope editor when sending emails, Mailvelope searches for the corresponding public key on the key server and colors the email address green or red, depending on the availability of the searched address on the server. On its Help page, the webmail provider Posteo.de offers a detailed guide on how to set up mobile PGP encryption on an Android device with the help of the programs Squeaky Mail and PGP KeyRing. For the option to be available in Mailvelope, there must be a properly installed implemention of GnuPG on your device. And best of all: From now on, no one will read along. This is the easiest way to fix the problem. Mailvelope provides its own key server. With the help of the following instructions Mailvelope can be configured for use on new websites. The providers of the "De-Mail" project, 1&1 and Deutsche Telekom are also technically adapted to Mailvelope (and its API). Copy the public key you want to upload to the clipboard. Activate developer mode at the top right corner of the page. Why using GnuPG backend instead of OpenPGP.js? In the next step the files to be decrypted are selected again with "Add file" or by dragging on the Mailvelope window. Installing Mailvelope in Chrome or Firefox browsers; ... by default it is 4096 bits which is a fairly secure key length. Select „Tools -> Add ons" in the Firefox main menue line. We therefore recommend security measures such as regular updates of your browser and operating system as well as the use of sufficiently secure passwords (see also: due to missing updates of the operating system or browser), encryption is also potentially at risk. Since Mailvelope cannot know which providers have been added, access to all websites is necessary to ensure their functionality. How do I choose a secure password for my private key? The license defines the maximum number of users of a domain linked to G Suite. This kind of password is usually very hard to remember. We recommend that you back up your private key on a USB drive or key (if it has added hardware or software password protection, it should be safe). The additional Mailvelope component is superimposed to the provider's user interface in the browser. If you have selected GnuPG as your preferred backend for encryption in Options -> General -> OpenPGP Preferences, the keys will be managed by your local GnuPG program (usually GPG4Win or GPGTools). Can anyone who has access to my computer also access my private key? If you activate the option "Gmail API Integration" under Options -> Gmail API, additional Mailvelope controls will be displayed in Gmail. Hover your mouse over your default key pair, which will be marked with the label "Default", and select it. Attention: Encrypting with Mailvelope changes the format of the file. Mailvelope has been designed as a browser extension and therefore needs an updated "software base" in order to function as intended. Why is this necessary? Mailvelope Nonprofit comes with the same features as the Mailvelope Business plan but without the enterprise support included in the Business plan. Select the Mailvelope icon to open the main menu. The browser extension Mailvelope provides end-to-end encryption for your existing email address. Key management by GnuPG can increase the security of Mailvelope by protecting the private keys in case your browser gets compromised. Finally, you can synchronize the new entry with the key server so that your communication partners can find you under the new address. Enter the old password, then enter and confirm the new password. Where do I get it from? First select "File Encryption" in the Mailvelope main menu and then "Decrypt" in the menu bar. How do I authorize a new domain for it to work with Mailvelope? From version 3.0 onwards, Mailvelope can also collaborate with a locally installed GnuPG application (e.g. On the top of your list of extensions you will find a gear icon with the option to „Debug Add-ons“. You can further increase this security by selecting GnuPG as the preferred backend for encryption under Options -> General -> OpenPGP Preferences. Select it, to see the key details. Your public key can now be sent to your communication partner, uploaded to a key server or integrated into your website. Select "Key Management", your default key, then the "Export" option. For this Mailvelope needs the access to the data for these websites. Alternatively you can copy your key to the clipboard from the "Key Details" window. If you want to change your default key, you will find the corresponding option when you select any key pair in the key list. Stel een e-mail op, maar klik daarna onmiddellijk op het icoontje van Mailvelope in het berichtvenster, er verschijnt dan Write secure email. A new browser window will open. Mailvelope has a simple way to authorize custom email domains. Users who want to use Mailvelope in conjunction with these webmail providers should learn about how to use Mailvelope directly on the help pages of the relevant provider because the integration works differently in every case. Mailvelope uses the key server in the background for some services. On the Key Management screen, select "Export" from the upper left corner. If you still experience issues, you can try one of the following options: Before you send a bug report, please always restart your browser and check if the problem persists. This gives your Mailvelope browser extension the right to deal with your emails directly via your Gmail account. Various threat scenarios have been tested during professional security audits: List of Mailvelope's audits. How can I use Mailvelope Business as a nonprofit organization? ... Certified Secure is LIVE. It is possible to exchange PGP-encrypted files or texts, including any attachments, in means, other than email. Moreover, you can store your public PGP key there for others to find easily. By default, the Chrome and Firefox browsers automatically send usage statistics and crash reports to Google or Firefox. A key server is a freely accessible database for the public keys of the PGP users. In this case, the file is encrypted with the public key of the recipient in the same way as email encryption. If you have multiple keyrings, first select the correct keyring on the top right of the key managment window (you will only find this menu if you have more than one keyring). 426 reviews / 174.969 users (source: Chrome Web Store, as of July 15, 2019), "Mailvelope is a browser extension for Chrome and Firefox that makes it easy to use PGP. If you choose to export your key using the clipboard please make sure -----BEGIN PGP PUBLIC KEY BLOCK-----and -----END PGP PUBLIC KEY BLOCK----- are being included. Finally, select "Search". Now select the PGP code in the text editor and copy it to the clipboard. However, security while using Mailvelope is dependent on how secure your device is. These functions should be deactivated because in case of a bug it is possible that stored content, which could also include private keys, could be sent to them. In Firefox you can find the corresponding option under "Privacy & Security" -> "Firefox Data Collection and Use". My webmail provider isn't pre-configured (authorized) in Mailvelope. Upon selecting "Save" the key pair will be saved to your Downloads folder as a .asc file. Encrypt your mails without having to change your email provider! If necessary, delete the user ID of your old email address. Generate a new key pair and inform your communication partners as soon as possible of the change of your public key. Often browser issues, and not Mailvelope itself, are responsible for malfunctions. Mailvelope does not receive more rights than any locally installed email application would get. Firefox offers a profile clean up feature. Can I only exchange encrypted emails with other Mailvelope users? The Mailvelope Browser extension takes over the encryption and packages the form data in a secure OpenPGP message.
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