troubleshooting: add Fail2ban IMAP self-ban article

Documents the 2026-03-14 incident where MajorAir's public IP was banned
by the postfix-sasl jail after repeated SASL auth failures, silently
blocking all IMAP connections from Spark Desktop.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

MajorWiki-Deploy-Status.md

@@ -31,7 +31,7 @@ DNS record and Caddy entry have been removed.
 
 ## Content
 
-- 23 articles across 5 domains
+- 37 articles across 5 domains
 - Source of truth: `MajorVault/20-Projects/MajorTwin/08-Wiki/`
 - Deployed via Gitea webhook (push from MajorAir → auto-pull on majorlab)
 
@@ -60,3 +60,45 @@ rsync -av --include="*.md" --include="*/" --exclude="*" \
 - **Cause:** `majwiki` container was in a restart loop due to a `LiterateNavParseError` in `SUMMARY.md` (invalid globbing syntax).
 - **Repair:** Rewrote `SUMMARY.md` with explicit links. Repaired `majwiki-webhook.service` by killing an orphaned process and correcting the Caddy reverse proxy routing for `/webhook`.
 - **Result:** Site live and auto-deployment functional.
+
+---
+
+*Updated 2026-03-14*
+
+## Canonical Update Workflow
+
+Obsidian Git plugin was evaluated and dropped — too convoluted. Manual git from the terminal is the workflow going forward.
+
+```bash
+cd ~/Documents/MajorVault
+git add 20-Projects/MajorTwin/08-Wiki/
+git commit -m "wiki: describe your changes"
+git push
+```
+
+Gitea receives the push → fires webhook → majorlab pulls → MkDocs rebuilds → `notes.majorshouse.com` updates automatically.
+
+## 📋 Wiki Maintenance Protocol
+
+Every time a new article is added, the following **MUST** be updated to maintain index integrity:
+
+1.  **`SUMMARY.md`**: Add the article to the navigation tree.
+2.  **Category Index**: Update the `index.md` within the specific domain folder (e.g., `05-troubleshooting/index.md`).
+3.  **Main `index.md`**: 
+    - Update the **Article count**.
+    - Add the article to the domain section.
+    - Add the article to the **Recently Updated** table.
+4.  **Root `README.md`**: Sync with the main `index.md` (Article count, domain lists, and Recently Updated).
+
+> [!note] The rsync one-liner in the Update Workflow section above was a one-off during initial setup. It is no longer the canonical method.
+
+---
+
+## Related
+- [[majorlab|majorlab]] — deploy host (port 8092, Caddy reverse proxy, Gitea webhook)
+- [[01-Phases|Implementation Phases]] — Phase 9 (wiki & knowledge base)
+- [[09-Lessons-Learned-v5|Lessons Learned v5]] — ISP SNI filtering on wiki.majorshouse.com (why it's notes.majorshouse.com)
+- [[MajorAir|MajorAir]] — push host for git workflow
+- [[MajorRig|MajorRig]] — alternative git push host (WSL2 path documented)
+- [[03-11-2026|Status Update 2026-03-11]] — deployment date journal entry
+- [[03-13-2026|Status Update 2026-03-13]] — content expansion and SUMMARY.md sync