Exchange On-Prem Skill#

Overview#

This skill provides EWS (SOAP) operations for on‑prem Exchange 2016 CU21: mail, folders, and calendar/meetings.

Requirements#

• Node.js 20+ (22+ recommended)
• Exchange EWS endpoint: /EWS/Exchange.asmx

Quick Start#

1. Install deps:

text

npm install

1. Create encrypted config:

text

npm run setup-config -- \
  --exchange-url https://mail.example.com/EWS/Exchange.asmx \
  --username user \
  --auth-mode ntlm \
  --password "<password>" \
  --master-key "<masterKey>"

1. Verify:

text

npm run verify-login

Safety Policy#

• Read-first by default
• Any write operation requires explicit confirmation
• Write commands require --confirm true (or EXCHANGE_WRITE_CONFIRM=true)
• --dry-run is supported for write commands to preview SOAP body
• --insecure true (if used) only relaxes TLS validation per request and does not change global Node TLS settings

Config Model#

File: config/exchange.config.json Required fields: exchange_url, username, auth_mode, secret_store Optional: domain

Capability Groups & Status#

Status:

• READY: implemented and verified
• RESTRICTED: write/risky actions require explicit confirmation
• LIMITED: implemented but blocked by environment limitations

A) Mailbox & Items#

• FindItem (mail list/read window): READY
• SearchMail (keyword in subject/body/recipients): READY
• GetItem: READY
• GetUnreadCount: READY
• CreateItem (mail create): READY RESTRICTED
• UpdateItem: READY RESTRICTED
• MoveItem / CopyItem / DeleteItem: READY RESTRICTED
• SendItem: READY RESTRICTED
• ReplyItem / ReplyAll: READY RESTRICTED
• MarkAllItemsAsRead: READY RESTRICTED
• ArchiveItem: LIMITED RESTRICTED

B) Folders#

• GetFolder: READY
• FindFolder: READY
• CreateFolder: READY RESTRICTED
• UpdateFolder: READY RESTRICTED
• DeleteFolder: READY RESTRICTED

C) Calendar & Meetings#

• Calendar window read ( FindItem + CalendarView): READY
• Create meeting ( CreateItem CalendarItem): READY RESTRICTED

D) Structure & Config#

• exchange.config.json create/update: READY
• Scripts organized by module folders: READY
• SKILL.md commands and status updated: READY

Defaults That Matter#

• get-mail / search-mail default scope is all (msgfolderroot).
• get-mail / search-mail default includes subfolders of the scope.
• get-mail / search-mail default time window is last 3650 days. Use --days-back to narrow.
• get-calendar default time window is next 7 days. Use --start-time / --end-time to override.

Command List#

Read commands:

• npm run verify-login
• npm run get-mail -- --unread-only --limit 10
• npm run get-mail -- --scope all --limit 10 (all folders under msgfolderroot)
• npm run get-mail -- --scope all --days-back 3650 --limit 10
• npm run search-mail -- --query "keyword" --limit 10
• npm run search-mail -- --scope all --query "keyword" --limit 10
• npm run get-item -- --item-id <EWS_ITEM_ID>
• npm run get-unread-count -- --scope all (all folders under msgfolderroot)
• npm run get-folder -- --distinguished-id inbox
• npm run find-folder -- --parent-distinguished-id msgfolderroot --traversal Shallow --limit 50
• npm run get-calendar -- --limit 20
• npm run get-calendar -- --start-time 2026-03-01T00:00:00+08:00 --end-time 2026-05-01T00:00:00+08:00 --limit 200

Write commands (require confirm):

• npm run create-mail -- --confirm true --to a@b.com --subject "s" --body "b"
• npm run reply-item -- --confirm true --item-id <id> --body "thanks" (supports --reply-all true)
• npm run update-item -- --confirm true --item-id <id> --subject "new" (auto-fetches ChangeKey if omitted)
• npm run mark-all-read -- --confirm true --distinguished-id inbox
• npm run create-folder -- --confirm true --display-name "My Folder" --parent-distinguished-id inbox
• npm run update-folder -- --confirm true --folder-id <id> --change-key <ck> --display-name "New Name"
• npm run delete-folder -- --confirm true --folder-id <id> --delete-type MoveToDeletedItems
• npm run move-item -- --confirm true --item-id <id> --target-distinguished-id inbox
• npm run copy-item -- --confirm true --item-id <id> --target-distinguished-id drafts
• npm run delete-item -- --confirm true --item-id <id> --delete-type MoveToDeletedItems
• npm run send-item -- --confirm true --item-id <draftId>
• npm run send-item -- --confirm true --item-id <draftId> --change-key <ck> (recommended; send will auto-fetch ChangeKey if omitted)
• npm run archive-item -- --confirm true --item-id <id>
• npm run create-meeting -- --confirm true --subject "Weekly Sync" --start "2026-03-18T09:00:00+08:00" --end "2026-03-18T09:30:00+08:00" --required a@b.com --location "Room A" --body "Agenda" --send-invitations SendToAllAndSaveCopy

Send receipt verification:

• create-mail, reply-item, send-item support --verify-sent true|false, --verify-window-minutes <n>, --verify-max-entries <n>, --verify-strict true|false

References#

• https://learn.microsoft.com/en-us/exchange/client-developer/web-service-reference/ews-operations-in-exchange