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Thunderbird: Improved Guide to Update PGP keys

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This commit is contained in:
Marten B. Kante
2026-07-01 01:27:58 +02:00
parent b61fb6c139
commit 28bcddc659
3 changed files with 50 additions and 7 deletions
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5
wiki/android/fairemail.md
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@@ -23,6 +23,11 @@ There the provider of OpenPGP (`OpenPGP provider`) can be set to OpenKeychain
(`org.sufficientlysecure.keychain`).
Using OpenKeychain PGP keys can then be imported and stored.
Please note that keys only need to be imported once.
If the keys are changed, especially if identities are added or remove, the key inside the
OpenKeychain app can simply be updated by selecting the update button.
However, identities need to be removed manually sometimes.
After this is done outgoing mails can be encrypted by signed or encrypted by selecting the
`Encrypt` selection on the top bar when writing emails.

10
wiki/openpgp.md
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@@ -13,8 +13,12 @@ sometimes also `gpg` or `gpg2` package.
## Usage
This section addresses the usage of OpenPGP.
All topics regarding generation, export or editing keys are described in the specific implementation
of the OpenPGP standard – for example [PGP](/wiki/linux/gpg.md).
### Encrypting, Decrypting, Signing and Verifying Emails
### Publishing PGP Keys
OpenPGP is often used to encrypt, decrypt or sign [emails](/wiki/email.md).
Most modern [email clients](/wiki/email.md#client) feature a way to do that.
It sometimes can be useful to publicly publish your public key.
This is mostly done to verify mail addresses.
For this the public key is usually added be added on [keys.openpgp.org](https://keys.openpgp.org).
Select `upload` or `manage` on the website and follow instructions to set this up.

42
wiki/thunderbird.md
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@@ -7,21 +7,55 @@ numerous [email](/wiki/email.md) addresses, calendars, todos and contacts.
The following section addresses different uses and add-ons of Thunderbird.
### Add New Alias/Identity to Existing Account
When using mail aliases most of the time they by default map to the existing mail.
This way the receiving of messages works by default.
However, some steps have to be taken for the sending of messages using the alias mail address to
work.
Navigate to the `Account Setting` entry of the existing mail address.
There select `Manage Identities...` and select `Add...`.
Set `Your Name` and `Email Address` accordingly to the new alias.
At the `Private Data` section set the existing mail address identity under `Outgoing Server`.
Then save.
Afterward, if you intend to use end-to-end encryption select the alias identity entry again and
select `Edit`.
Navigate to `End-To-End Encryption` and set the settings according to your wishes.
For example the OpenPGP key may have to be selected and default settings for signing could be set.
### Use PGP Key for Encryption, Decryption and Signing
Thunderbird can use [OpenPGP](/wiki/openpgp.md) to sign, encrypt or decrypt mails.
To add this navigate to the `Account Settings` under `Edit` and then select the mail to add the PGP
key to and `End-to-End Encryption`.
There keys can be added by selecting `Add Keys...` and afterwards the private key can be selected
Firstly a key needs to be generated.
This is explained in the sections on [key generation](/wiki/linux/gpg.md#generating-a-key-pair),
[key management](/wiki/linux/gpg.md#managing-multiple-users-and-e-mails-of-an-existing-secret-key)
and [key export](/wiki/linux/gpg.md#backing-up-and-exporting-keys) in the
[GPG entry](/wiki/linux/gpg.md).
Other [OpenPGP](/wiki/openpgp.md) implementations can also be used but [GPG](/wiki/linux/gpg.md) is
the most used one.
To add a key to an existing mail account on Thunderbird, navigate to the `Account Settings` under
`Edit` and then select the mail to add the PGP key to and `End-to-End Encryption`.
There keys can be added by selecting `Add Keys...` and afterward the private key can be selected
for encryption, decryption and signing.
This however is only possible if the key is issued to the same e-mail it should be added to.
In the `Account Settings` of emails with set up PGP key the default options can be set up.
Under `Deault settings for sending messages` it can be set to encrypt or not encrypt mails by
Under `Default settings for sending messages` it can be set to encrypt or not encrypt mails by
default.
Emails can also be signed by default if not encrypted (for this select
`Sign unencrypted messages`).
Finally, the PGP key should be published.
This can be done via Thunderbirds own `OpenPGP Key Manager` under the `End-To-End Encryption` tab of
the `Account Settings` of a mail entry.
Select a OpenPGP key to publish and select `Keyserver` and `Publish`.
Thunderbird will, by default, publish to [keys.openpgp.org](https://key.openpgp.org) but the
managing and removal of keys can be more easily be done manually as explained in the
[OpenPGP entry](/wiki/openpgp.md#publishing-pgp-keys).
It is generally recommended to also publish the keys this way.
### Enable Spell Checking of a Specific Language
Spell checking can be changed in the `Settings` from the `Edit` tab.