iachat/lib/redis
Tanmay Deep Sharma 7acd239c70
fix: call authorization_error! on IMAP auth failures (#13560)
## Notion document

https://www.notion.so/chatwoot/Email-IMAP-Issue-30aa5f274c928062aa6bddc2e5877a63?showMoveTo=true&saveParent=true

## Description

PLAIN IMAP channels (non-OAuth) were silently retrying failed
authentication every minute, forever. When credentials are
wrong/expired, Net::IMAP::NoResponseError was caught and logged but
channel.authorization_error! was never called — so the Redis error
counter never incremented, reauthorization_required? was never set, and
admins were never notified. OAuth channels already had this handled
correctly via the Reauthorizable concern.
Additionally, Net::IMAP::ResponseParseError (raised by non-RFC-compliant
IMAP servers) was falling through to the StandardError catch-all,
flooding
Estimated impact before fix: ~70–75 broken IMAP inboxes generating
~700k–750k wasted Sidekiq jobs/week.

## Type of change

- [ ] Bug fix (non-breaking change which fixes an issue)

## Checklist:

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my code
- [ ] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules
2026-02-26 18:01:23 +05:30
..
alfred.rb feat: Assignment service (v2) (#12320) 2025-11-17 10:08:25 +05:30
config.rb chore: Upgrade to Rails 7 (#6719) 2023-05-06 10:44:52 +05:30
lock_manager.rb feat: set lock timeout to 1 second (#8661) 2024-01-12 08:28:07 +05:30
redis_keys.rb fix: call authorization_error! on IMAP auth failures (#13560) 2026-02-26 18:01:23 +05:30