Most enterprise inboxes are on Microsoft 365. Most executives are drowning in those inboxes. The volume is the problem, the structure is the problem, and Outlook's search is not designed for the "what did I miss this week" question.
Connecting Outlook to Claude through CorpusIQ gives executives a way to triage. Ask what requires a response, ask which threads reference a specific project, ask where the decisions got made this week. Pulls from Exchange Online in real time.
The problem with the current workflow
Outlook is built for reading one email at a time. It is not built for asking the inbox a question. Search works, rules work, flags work, but none of them answer the question "what do I need to act on today that I have not already seen."
For executives, the cost compounds. Hours of reading email with low information density. Context-switching between Teams, Outlook, and SharePoint. The signal is in the inbox somewhere. Finding it manually burns the productive part of the morning.
How CorpusIQ solves it
CorpusIQ connects Outlook to Claude through MCP. Claude can search, filter, and summarize across inbox, folders, and specific date ranges.
Read-only. Claude cannot send, reply, archive, or delete.
No storage. Every query hits Microsoft Graph live.
Revocable. Remove from Microsoft 365 app permissions.
What you can actually do
- "Summarize unresponded emails from the last 7 days that appear to require a decision."
- "Search the last 30 days for any emails mentioning the Acme acquisition."
- "Find every email from my board members in the last 60 days and summarize the top themes."
- "List meetings agreed to via email but not yet on my calendar."
- "Which threads have I been added to in the last 14 days that I have not read?"
- "Search for any legal or compliance notices in my inbox from the last 90 days."
- "Summarize the top 5 longest unread threads."
- "Find emails where my name appears in the body but I am not on the direct To line."
Follow-ups work naturally. Ask what needs response, pick one thread, ask what the full context is, ask what an appropriate reply would cover.
Setup in 3 minutes
- Sign up at corpusiq.io. Solo $29.95/month, covers Outlook plus 37+ connectors.
- Click Connect next to Microsoft. Approve read access through the Microsoft OAuth flow.
- Connect CorpusIQ to Claude.
Where this earns its keep
Enterprise executives, board members, and anyone in a Microsoft-first org gets the most lift. The volume of email at that level is the constraint, and triage is where Claude adds hours back.
Compounds with OneDrive, Calendar, and HubSpot. Ask Claude about a customer across email, files, meetings, and CRM record in one conversation.
What to watch out for
Microsoft 365 admin policies may restrict OAuth apps. If your IT team blocks third-party apps by default, CorpusIQ will need admin consent before the connection works. Plan for a brief IT conversation.
See also
FAQ
Does CorpusIQ store my Outlook email?
No. Read-only, zero storage. Email stays in Microsoft 365.
Can Claude send or delete messages?
No. Read-only.
Does this work with Exchange Online and Microsoft 365?
Yes. Standard Microsoft 365 Business and Enterprise accounts are supported.
Is this different from Copilot for Microsoft 365?
Yes. This connects Outlook to Claude via MCP, independent of Microsoft Copilot.