Security fixes:
- Escape plain text body to prevent XSS via trustAsHtml
- Add SSRF protection to image proxy (block private IPs, require auth)
- Sanitize Content-Disposition filename to prevent header injection
- Escape Sieve script values to prevent script injection
- Escape IMAP search query to prevent search injection
Install/upgrade fixes:
- Move setupWebmail() call to after Dovecot is installed (was running
before doveadm existed, silently failing on every fresh install)
- Make setupWebmail() a static method callable from install.py
- Fix upgrade idempotency: always run dovecot.conf patching and
migrations even if webmail.conf already exists (partial failure recovery)
Frontend fixes:
- Fix search being a no-op (was ignoring results and just reloading)
- Fix loading spinner stuck forever on API errors (add errback)
- Fix unread count decrementing on already-read messages
- Fix draft auto-save timer leak when navigating away from compose
- Fix composeToContact missing signature and auto-save
- Fix null subject crash in reply/forward
- Clear stale data when switching accounts
- Fix attachment part_id mismatch between parser and downloader
Backend fixes:
- Fix Sieve _read_response infinite loop on connection drop
- Add login check to apiSaveDraft
- Fix apiSSO() resetting selected account to first one on every call,
now preserves previously selected account if still valid
- Fix webmail.conf ownership to use cyberpanel:cyberpanel (Django runs
as cyberpanel user, not nobody)
- Add error notifications when SSO or folder loading fails
- Use correct Dovecot namespace (separator='.', prefix='INBOX.'):
folders are INBOX.Sent, INBOX.Drafts, INBOX.Deleted Items, etc.
- Quote IMAP folder names with spaces (e.g. "INBOX.Deleted Items")
- Add display_name and folder_type to folder list API response
- Fix SMTP for SSO: use local relay on port 25 (permit_mynetworks)
since Dovecot has no auth_master_user_separator for port 587
- Fix Sieve SASL PLAIN auth to use clean RFC 4616 format
- Handle ManageSieve unavailability gracefully with helpful logging
- Update frontend to show clean folder names and correct icons
- Auto-prefix new folder names with INBOX. namespace
Replace SnappyMail link with a custom Django webmail app that provides:
- Full IMAP/SMTP integration (Dovecot + Postfix) with master user SSO
- 3-column responsive UI matching CyberPanel design system
- Compose with rich text editor, attachments, reply/forward
- Contact management with auto-collect from sent messages
- Sieve mail filter rules with ManageSieve protocol support
- Standalone login page for direct webmail access
- Account switcher for admins managing multiple email accounts
- HTML email sanitization (whitelist-based, external image proxy)
- Draft auto-save and per-user settings
