[GH-ISSUE #714] Content-ID missing on emails from Booking.com #1063

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opened 2026-03-14 11:37:29 +03:00 by kerem · 3 comments
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Originally created by @D3strukt0r on GitHub (Jan 24, 2025).
Original GitHub issue: https://github.com/anonaddy/anonaddy/issues/714

I've noticed that the embedded images coming from Booking.com are never shown. Checking the code, and comparing it with another email I have where it worked, the Booking.com one doesn't have a Content-ID and all files are attached with nonameX where X is an increasing number. So the images in the email will not resolve with the src="cid:XX". I don't know if it has something to do with AnonAddy, but I don't remember that Booking emails had issues showing images until switching to AnonAddy.

Working example from an Apple Email

Image

Image

Image

Broken example from Booking.com

Image

Image

Image

Image

If you need more info, I'll happily share. As Booking Emails are quite personal, I'd send them directly (Email) instead of through here.

The email has the same issues for me on ProtonMail, Outlook on the Desktop or another copy send to a Hotmail address. Images are never shown.

Originally created by @D3strukt0r on GitHub (Jan 24, 2025). Original GitHub issue: https://github.com/anonaddy/anonaddy/issues/714 I've noticed that the embedded images coming from Booking.com are never shown. Checking the code, and comparing it with another email I have where it worked, the Booking.com one doesn't have a `Content-ID` and all files are attached with `nonameX` where X is an increasing number. So the images in the email will not resolve with the `src="cid:XX"`. I don't know if it has something to do with AnonAddy, but I don't remember that Booking emails had issues showing images until switching to AnonAddy. Working example from an Apple Email ![Image](https://github.com/user-attachments/assets/782be08c-733f-4425-a12c-9c65e3fe6456) ![Image](https://github.com/user-attachments/assets/c2708d51-cbb4-41f3-9662-36d356f2a983) ![Image](https://github.com/user-attachments/assets/96b4006f-3f85-42f2-9206-6199d2a55035) Broken example from Booking.com ![Image](https://github.com/user-attachments/assets/14d3e0f3-1e12-4a00-9a12-6553224bed09) ![Image](https://github.com/user-attachments/assets/4a576906-a3a1-4f0c-8605-982f32065512) ![Image](https://github.com/user-attachments/assets/4e52f751-ccdc-46c8-bdb1-7ebc4ce657f6) ![Image](https://github.com/user-attachments/assets/9da73dcc-3aa6-4525-9f82-ada3e4f6e29f) If you need more info, I'll happily share. As Booking Emails are quite personal, I'd send them directly (Email) instead of through here. The email has the same issues for me on ProtonMail, Outlook on the Desktop or another copy send to a Hotmail address. Images are never shown.
kerem closed this issue 2026-03-14 11:37:34 +03:00
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Owner

@willbrowningme commented on GitHub (Jan 27, 2025):

Thanks, will look into this now.

<!-- gh-comment-id:2615375269 --> @willbrowningme commented on GitHub (Jan 27, 2025): Thanks, will look into this now.
Author
Owner

@willbrowningme commented on GitHub (Feb 12, 2025):

I've just fixed this, please let me know if there are any future issues.

<!-- gh-comment-id:2654288077 --> @willbrowningme commented on GitHub (Feb 12, 2025): I've just fixed this, please let me know if there are any future issues.
Author
Owner

@D3strukt0r commented on GitHub (Mar 12, 2025):

Can confirm, seems to be working

Image
<!-- gh-comment-id:2717202389 --> @D3strukt0r commented on GitHub (Mar 12, 2025): Can confirm, seems to be working <img width="215" alt="Image" src="https://github.com/user-attachments/assets/fcdaf7de-e6b7-48c3-b674-0f64a976bc23" />
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starred/anonaddy#1063
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