# Encrypted files in emails

**URL:** <https://forum.delta.chat/t/encrypted-files-in-emails/1020>\
**Category:** Mutual Help\
**Created:** [June 8, 2020, 10:44am UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020 "2020-06-08T10:44:43Z")\
**Posts on this page:** 19\
**Page:** 1

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**Author:** ![Imzargar](https://forum.delta.chat/user_avatar/forum.delta.chat/imzargar/32/667_2.png) [@Imzargar](https://forum.delta.chat/u/Imzargar)\
**Post date:** [June 8, 2020, 10:44am UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/1 "2020-06-08T10:44:43Z")

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**Delta Chat version**

Version 1.8.1

Sometimes user message me and all I receive is an email with couple of encrypted files. Not sure if it was a message from user or any screenshot they tried to send over the app.  
Please assist here!

**Screen snapshots**

 ![IMG_20200608_160310](https://support.delta.chat/uploads/default/original/1X/37c77f6ce5c6b48edc9ab3622ea1d9bc70b8788f.jpeg)

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**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\
**Post date:** [June 8, 2020, 12:34pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/2 "2020-06-08T12:34:51Z")

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So you don’t get the message in DeltaChat, but you still see it in your email account.  
I assume you are on android.  
Is the problem that deltachat isn’t running in the background, because your system kills it?

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<div class="post-metadata">

**Author:** ![Imzargar](https://forum.delta.chat/user_avatar/forum.delta.chat/imzargar/32/667_2.png) [@Imzargar](https://forum.delta.chat/u/Imzargar)\
**Post date:** [June 8, 2020, 12:36pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/3 "2020-06-08T12:36:52Z")

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Yes I’m on android but I don’t think system is killing app in background as I checked a few times if there’s any message in app when that encrypted file email showed up in email inbox.

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**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\
**Post date:** [June 8, 2020, 12:41pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/4 "2020-06-08T12:41:01Z")

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Maybe mark the encrypted email as unread and then restart your phone and open DeltaChat.

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<div class="post-metadata">

**Author:** ![Imzargar](https://forum.delta.chat/user_avatar/forum.delta.chat/imzargar/32/667_2.png) [@Imzargar](https://forum.delta.chat/u/Imzargar)\
**Post date:** [June 8, 2020, 12:42pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/5 "2020-06-08T12:42:30Z")

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Oh k. Wouldn’t it be great if messages between delta apps commute directly without showing up in inbox ? Or is that not possible by any means?

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<div class="post-metadata">

**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\
**Post date:** [June 8, 2020, 12:49pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/6 "2020-06-08T12:49:35Z")

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DeltaChat can only move the messages in the deltachat folder when it is running.

If you don’t want any messages in you inbox even when deltachat is not always active, you need to create a filter rule on gmail that moves the messages. [https://support.google.com/mail/answer/6579?hl=en](https://support.google.com/mail/answer/6579?hl=en)

The filter needs to say:  
**If `Chat-Version` header exists move the email to the DeltaChat folder.**

(I don’t know the exact steps as I don’t use gmail, it could be that gmail doesn’t support filtering emails based on headers in that case you would need to use another email provider if you absolutely need that behaviour)

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<div class="post-metadata">

**Author:** ![gerryfrancis](https://forum.delta.chat/user_avatar/forum.delta.chat/gerryfrancis/32/1771_2.png) [@gerryfrancis](https://forum.delta.chat/u/gerryfrancis)\
**Post date:** [June 8, 2020, 12:54pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/7 "2020-06-08T12:54:31Z")

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Is there a chance to find out if the message has been encrypted in conjunction with a public key of the recipient?

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<div class="post-metadata">

**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\
**Post date:** [June 8, 2020, 12:55pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/8 "2020-06-08T12:55:54Z")

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@gerryfrancis I’m not sure what you mean by that but I would suggest to open a new topic for your question 😉

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<div class="post-metadata">

**Author:** ![gerryfrancis](https://forum.delta.chat/user_avatar/forum.delta.chat/gerryfrancis/32/1771_2.png) [@gerryfrancis](https://forum.delta.chat/u/gerryfrancis)\
**Post date:** [June 8, 2020, 1:00pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/9 "2020-06-08T13:00:09Z")

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I have been referring to the non-readable attachment named “encrypted.asc”. The sender probably does not use Delta Chat, and if the mail received is encrypted with the public key of the recipient, I believe it cannot be read, at least not with Delta Chat.

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<div class="post-metadata">

**Author:** ![Imzargar](https://forum.delta.chat/user_avatar/forum.delta.chat/imzargar/32/667_2.png) [@Imzargar](https://forum.delta.chat/u/Imzargar)\
**Post date:** [June 8, 2020, 1:02pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/10 "2020-06-08T13:02:27Z")

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Sender is using delta chat actually, on his linux desktop. I was also wondering how could such file be opened if this happens in future? A workaround may be…

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<div class="post-metadata">

**Author:** ![gerryfrancis](https://forum.delta.chat/user_avatar/forum.delta.chat/gerryfrancis/32/1771_2.png) [@gerryfrancis](https://forum.delta.chat/u/gerryfrancis)\
**Post date:** [June 8, 2020, 1:06pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/11 "2020-06-08T13:06:31Z")

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Do you think that it depends on a file attachment that is included in the message?

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<div class="post-metadata">

**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\
**Post date:** [June 8, 2020, 5:15pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/12 "2020-06-08T17:15:31Z")

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No, why should it?

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<div class="post-metadata">

**Author:** ![gerryfrancis](https://forum.delta.chat/user_avatar/forum.delta.chat/gerryfrancis/32/1771_2.png) [@gerryfrancis](https://forum.delta.chat/u/gerryfrancis)\
**Post date:** [June 8, 2020, 6:56pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/13 "2020-06-08T18:56:17Z")

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Purely speculating. The file “encrypted.asc” combined with the “noname” content look like a message that consists of one encrypted image only.

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<div class="post-metadata">

**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\
**Post date:** [June 8, 2020, 11:54pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/14 "2020-06-08T23:54:17Z")

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> [@Imzargar](#):
>
> I was also wondering how could such file be opened if this happens in future?

use thunderbird with the autocrypt plugin or another autocrypt compatible email client [Autocrypt-capable MUAs level 1 implementation status — Autocrypt 1.1.0 documentation](https://autocrypt.org/dev-status.html)

@gerryfrancis I think we don’t communicate efficiently right now, because I still don’t know what you want to say.

> [@gerryfrancis](#):
>
> and if the mail received is encrypted with the public key of the recipient

If it is not encrypted via autocrypt standard it can’t be decrypted by deltachat.

> [@gerryfrancis](#):
>
> Do you think that **it** depends on a file attachment that is included in the message?

what is _it_ in this context?

> [@gerryfrancis](#):
>
> The file “encrypted.asc” combined with the “noname” content look like a message that consists of one encrypted image only.

encrypted.asc contains the message it exists also on plain text messages.

But I still don’t understand how this relates/ is important to the original problem of @Imzargar

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<div class="post-metadata">

**Author:** ![gerryfrancis](https://forum.delta.chat/user_avatar/forum.delta.chat/gerryfrancis/32/1771_2.png) [@gerryfrancis](https://forum.delta.chat/u/gerryfrancis)\
**Post date:** [June 9, 2020, 5:17am UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/15 "2020-06-09T05:17:42Z")

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> [@Simon](#):
>
> If it is not encrypted via autocrypt standard it can’t be decrypted by deltachat.

That is exactly what I meant, but that was before I have been informed that the sender in fact does use Delta Chat.

> [@Simon](#):
>
> what is _it_ in this context?

The problem itself, the visual appearance of the file attachment “encrypted.asc”.

> [@Simon](#):
>
> encrypted.asc contains the message it exists also on plain text messages.

Maybe I do not understand this right, I have had the impresssion that this is an encrypted content that cannot be read (decrypted), otherwise it would have been shown to the recipient, right?

> [@Simon](#):
>
> But I still don’t understand how this relates/ is important to the original problem of @Imzargar

The first post of this thread includes a screenshot, and I was focusing on the two elements “encrypted.asc” and “noname”, which I interpreted to be likely unusual, I have never seen this before. Now I assume that it probably has something to do with Autocrypt introduction. Anyway, you are the expert, all good. 🙂

Best, Gerry

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<div class="post-metadata">

**Author:** ![Simon](https://forum.delta.chat/user_avatar/forum.delta.chat/simon/32/287_2.png) [@Simon](https://forum.delta.chat/u/Simon)\
**Post date:** [June 9, 2020, 9:47am UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/16 "2020-06-09T09:47:18Z")

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> [@gerryfrancis](#):
>
> otherwise it would have been shown to the recipient, right?

The Gmail app doesn’t support any encryption.  
That’s how an encrypted message looks in an email client that doesn’t support encryption.

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<div class="post-metadata">

**Author:** ![gerryfrancis](https://forum.delta.chat/user_avatar/forum.delta.chat/gerryfrancis/32/1771_2.png) [@gerryfrancis](https://forum.delta.chat/u/gerryfrancis)\
**Post date:** [June 9, 2020, 9:54am UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/17 "2020-06-09T09:54:11Z")

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Thank you, I am an idiot, I thought it was a screenshot of Delta Chat, not Gmail!! 🤪

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<div class="post-metadata">

**Author:** ![tankf33der](https://forum.delta.chat/letter_avatar_proxy/v4/letter/t/8491ac/32.png) [@tankf33der](https://forum.delta.chat/u/tankf33der)\
**Post date:** [June 27, 2020, 11:55am UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/18 "2020-06-27T11:55:09Z")

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I have the same in IOS 13.5.1, delta 1.9.5.

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<div class="post-metadata">

**Author:** ![r10s](https://forum.delta.chat/user_avatar/forum.delta.chat/r10s/32/1513_2.png) [@r10s](https://forum.delta.chat/u/r10s)\
**Post date:** [October 6, 2026, 2:59pm UTC](https://forum.delta.chat/t/encrypted-files-in-emails/1020/19 "2026-10-06T14:59:35Z")

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