nextcloud / nextcloud/mail

Case-sensitive address matching triggers "Reply All" incorrectly

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1. to develop bug
Dominant language
JavaScript
Stars
1k
Forks
348
Avg merge
12h 28m
Merged PRs (30d)
91

Description

Steps to reproduce
  1. Configure Nextcloud mail App for user@mail.com
  2. Send an email to User@mail.com
Expected behavior

User@mail.com should be considered as user@mail.com and reply button should only reply to the sender

Actual behavior

User@mail.com is considered as another user, and "Reply All" button is visible. When you reply, the reply is sent to the sender AND to yourself, because of case sensitive address matching.

Mail app version

5.6.7

Nextcloud version

32.0.2

Mailserver or service

postfix/dovecot

Operating system

debian

PHP engine version

PHP 8.3

Nextcloud memory caching

No response

Web server

Apache (supported)

Database

MariaDB

Additional info

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the case-sensitive address mismatch in the Nextcloud Mail app with the reported versions and inspect the logic behind the Reply and Reply All buttons. Trace how sender and recipient addresses are compared, then verify that differently cased equivalents are treated as the same address and that replying does not include the sender twice.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, php
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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