The best CRMs for teams that live in Microsoft Outlook and Microsoft 365 — two-way email sync, calendar integration, contact capture from the inbox, and Teams workflows that actually work.
HubSpot is a CRM platform with Sales, Marketing, Service, Content and Data hubs on one contact database. It fits SMB and mid-market teams that want a free CRM to start and paid hubs later.
Visit HubSpot CRM →
Microsoft sales CRM that works with Outlook, Teams and Power Platform. Copilot and prebuilt AI agents handle lead qualification, opportunity research and deal summaries.
Visit Dynamics 365 Sales →
Nutshell is a CRM with email and calendar sync, pipelines, forms and landing pages, email marketing and AI features, sold in five tiers for small and mid-size sales teams.
Try Nutshell →Try Nutshell: weekcrm.com/go/nutshell (affiliate link)
CRM for B2B sales teams that fills contact and activity data from email, calendar and web signatures. Includes pipelines, email sequences and a lead finder.
Visit Salesflare →
Sales CRM built around a Kanban-style pipeline, with workflow automation, email and calendar sync, and a marketplace of 500+ integrations. Aimed at small sales teams.
Try Pipedrive →Try Pipedrive: weekcrm.com/go/pipedrive (affiliate link)
Outlook integration is a spectrum, not a checkbox. The CRMs below all sync email and calendar with Outlook and Microsoft 365, and most ship a native Outlook add-in (not just an IMAP connection) with contact and deal context in the Outlook sidebar. We also weighed reliability — many CRMs advertise Outlook support but break on Outlook Web vs. Outlook Desktop vs. Outlook Mobile. The HubSpot, Dynamics, Salesflare and Pipedrive picks work across all three; for Nutshell, test it in the 14-day free trial.
1. HubSpot — best free Outlook CRM. The Outlook add-in is polished, fast, and works in desktop, web, and mobile. Email tracking, templates, sequences, and meeting booking are all accessible from the inbox. The free tier covers unlimited users and 1M contacts — for most small teams, this alone is the answer.
2. Microsoft Dynamics 365 — deepest native integration. Built by Microsoft. Teams, SharePoint, Power Platform, and Outlook share the same identity and data fabric. For 100+ employee organizations already standardized on Microsoft, the integration depth is unmatched. The catch: Dynamics requires a partner-led implementation and per-app pricing that adds up fast.
3. Nutshell — best value at a per-user price. Email and calendar sync with Microsoft 365 is included on every tier, including the Foundation plan at $13/user/mo billed annually ($19 monthly). Unlimited contacts and storage, plus forms and landing pages, come on every plan. The catch: email marketing, SMS, prospecting and quotes are paid add-ons, and sales automation starts at Pro ($42).
4. Salesflare — best automated in-inbox CRM. Salesflare's Outlook add-in turns the inbox itself into the CRM — contact records, deal stages, and pipeline activity all available from Outlook's reading pane. Auto-capture of contacts, emails, and meeting attendance is the standout feature. Best for small B2B sales teams (1–10 people).
5. Pipedrive — best simple pipeline CRM with Outlook sync. Pipedrive's Smart Email BCC and Outlook add-in cover the basics cleanly. Pipedrive is best when you want a visual pipeline CRM rather than a full marketing+sales suite, and you don't need Outlook-native automation rules.
For most Outlook teams, HubSpot Free is the right starting point — the Outlook add-in is the best in the free tier and the upgrade path is clean. Dynamics 365 wins above 100 seats with deep Microsoft ecosystem use. Nutshell is the best paid SMB pick when you want unlimited contacts plus forms and landing pages at a per-user price; budget for the email marketing add-on if you need it. Salesflare is the right answer for small teams that want the inbox to be the CRM.