Preguntas Máis Frecuentes

Que é Delta Chat?

Delta Chat é unha nova aplicación de chat que envía as mensaxes vía email, cifrados con Autocrypt se é posible. Non precisas rexistrarte en ningún sitio, só tes que usar a túa conta de email con Delta Chat.

Como atopar xente coa que conversar?

Con Delta Chat, podes escribirlle a calquera enderezo de email - mesmo se os correspondentes non usan a app Delta Chat. Non precisas que o correspondente use a mesma app que ti, ao contrario de outras mensaxerías.

Cales son as vantaxes de Delta Chat comparadas con outras mensaxerías?

Que mensaxes aparecen en Delta Chat?

Delta Chat mostra de xeito automático:

Other messages do not appear automatically, and are to be found in Contact requests. If desired a chat can be started from there.

Que pasa co spam?

Delta Chat ten soporte para imaxes, vídeos e outros anexos?

Quen pode ver a miña foto de perfil?

### Ten Delta Chat soporte para emails HTML?

Por que teño que escribir o contrasinal do meu email en Delta Chat? Esto é seguro?

Como con calquera outro programa de email como Thundirbird, K9-mail, ou Outlook, o programa precisa o contrasinal para poder enviar emails. Por suposto, o contrasinal gárdase só no teu dispositivo. O contrasinal só se transmite ao teu provedor de email (ao conectarte), que de todas formas xa ten acceso ao teu correo.

Se usas un provedor de email con soporte OAuth2 como ou, non hai necesidade de almacenar o contrasinal no dispositivo. Neste caso, só se usa o testemuño (token) de acceso.

Como Delta Chat é Código Aberto, podes mirar o [Código Fonte] ( se queres verificar que as túas credenciais se xestionan de xeito seguro. Encántanos recibir comentarios que fagan a app máis segura para todas as usuarias.

Which permissions does Delta Chat need?

Depending on the operating system in use, you may be asked to grant permissions to the app. This is what Delta Chat does with these permissions:


Crear un grupo

Engadir participantes do grupo

Que é un grupo verificado? Por que é experimental?

I have deleted myself by accident.

I do not want to receive the messages of a group any longer.

What do double ticks mean in group messages? Has everyone read my message now?


Does Delta Chat support end-to-end-encryption?

What do I have to do to activate the end-to-end-encryption?

If end-to-end-encryption is not available, is the connection not encrypted at all?

How can I verify cryptographic status with a sender?

If you are within immediate distance of the chat partner:

If you are not near the chat partner, you can check the status manually in the “Encryption” dialog (user profile on Android/iOS or right-click a user’s chat-list item on desktop):

How can I check the encryption of messages?

Which standards are used for end-to-end-encryption?

What is the difference between verified groups and 1:1 chats with verified contacts?

Does Delta Chat support Perfect Forward Secrecy?

How does Delta Chat protect my Metadata?

Can I reuse my existing private key?

If you don’t have a key or don’t even know you would need one - don’t worry: Delta Chat generates keys as needed, you don’t have to hit a button for it.

I can’t import my existing PGP key into Delta Chat.

The most likely cause is that your key is encrypted and/or uses a password. Such keys are not supported by Delta Chat. You could remove the passphrase encryption and the password and try the import again. If you want to keep your passphrase you’ll have to create an e-mail alias for use with Delta Chat such that Delta Chat’s key is tied to this e-mail alias.

Delta Chat supports common OpenPGP private key formats, however, it is unlikely that private keys from all sources will be fully supported. This is not the main goal of Delta Chat. In fact, the majority of new users will not have any key prior to using Delta Chat. We do, however, try to support private keys from as many sources as possible.

Removing the password from the private key will depend on the software you use to manage your PGP keys. With Enigmail, you can set your password to an empty value in the Key Management window. With GnuPG you can set it via the command line. For other programs, you should be able to find a solution online.

Why don’t you use pEp (pretty easy privacy)?


Can I use Delta Chat on multiple devices at the same time?

If you want to use the same account on different devices, you should export a backup from the old device, and import it into the new device:

Are there any plans for introducing a Delta Chat Web Client?

Why can I choose not to watch the Inbox?

This is an experimental setting for some people who are experimenting with server-side rules. Not all providers support this, but with some you can move all mails with a “Chat-Version” header to the DeltaChat folder. Normally, this would be done by the Delta Chat app.

Watching the Inbox makes sense to turn off, if you have both:

In this case, Delta Chat doesn’t need to watch the Inbox.

What is the “Send Copy to Self” setting good for?

Sending a copy of your messages to yourself ensures that you receive your own messages on all devices. If you have multiple devices and don’t turn it on, you see only the messages from other people, and the messages you send from the current device.

The copy is sent to the Inbox, and then moved to the DeltaChat folder; it’s not put into the “Sent” folder. Delta Chat never uploads anything to the Sent folder because this would mean uploading a message twice (once through SMTP, and once through IMAP to Sent folder).

The default setting for copy-to-self is “no”.

Why can I choose to watch the “Sent” folder?

The only reason one wants to watch the Sent folder is if you are using another mail program (like Thunderbird) next to your Delta Chat app, and want your MUA to participate in chat conversations.

However, we recommend using the Delta Chat Desktop Client; you can download it on The option to watch the “Sent” folder might go away in the future. It was introduced at a time where there was no Delta Chat Desktop client available on all platforms.

Why can I choose not to watch the DeltaChat folder?

Some people use Delta Chat as a regular email client, and want to use the Inbox folder for their mail, instead of the DeltaChat folder. If you disable “Watch DeltaChat folder”, you should also disable “move chat messages to DeltaChat”. Otherwise, deleting messages or multi-device setups might not work properly.


Does Delta Chat work with my e-mail-provider?

If Delta Chat uses E-Mail, is it really an Instant Messenger?

Is Delta Chat compatible with Protonmail / Tutanota / Criptext?

I’m interested in the technical details. Can you tell me more?

How are Delta Chat developments funded?

First of all, Delta Chat does not receive any Venture Capital and is not indebted, and under no pressure to produce huge profits, or to sell users and their friends and family to advertisers (or worse).

Delta Chat developments have so far been funded from four major sources:

The monetary funding mentioned above was organized by merlinux GmbH in Freiburg (Germany), and then distributed to almost a dozen contributors.

Funding for 2020/2021 is yet to be determined. We are pursuing several opportunities with different organisations and partners. We also are considering to ask for donations. In fact, we experimentally started a little Delta Chat / Liberapay donation account but have not published this yet. There were also around 3-4K so far donated to Bjoern’s (the original author of Delta Chat) paypal and bitcoin donation channels.