"Could not open folder"
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Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 45/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Active
- Tech stack
- javascript, mysql, php
- Domain
- backend, full-stack
Research direction
Start by reproducing the Mail app folder-loading failure in version 5.11.3 with the attached problematic email, comparing a failing folder with filtered date or keyword ranges and Thunderbird. Trace the folder message-loading path and use the affected email to identify the failure; done means affected folders display all messages without the error.
Written by the indexing model from the issue text.
Description
Steps to reproduce
- Open the Mail app
- Try opening certain email folders (like inbox)
Expected behavior
Display all messages in the folder
Actual behavior
No emails shown but a "Could not open folder" message is being displayed
Mail app version
5.11.3
Nextcloud version
33.0.8.2
Mailserver or service
No response
Operating system
mutliple Linux Distros and WIndows 10/11 with Chromium and Firefox
PHP engine version
Other
Nextcloud memory caching
No response
Web server
None
Database
MySQL
Additional info
I think it could be related to formatting/specialties of certain emails.
The folders can load if the certain emails are excluded for example by searching of keywords or adjusting the date range.
It seems to effect most emails by one sender but also multiple other emails and I haven't seen a clear pattern yet.
All emails work fine when I use Thunderbird to access my email account. So it doesn't seem to be an issue with the mail server.
I isolated one email that breaks things and that is not too much of a privacy issue and will attach it here.
Any other good steps I can take to help debugging?
PHP 8.4.12
- Dominant language
- JavaScript
- Stars
- 1k
- Forks
- 363
- Avg merge
- 1d 10h
- Merged PRs (30d)
- 80
Getting set up
- No Dockerfile or Docker Compose file
- No pull request template
- Read the contributing guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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