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VERDICT

Should I use Outlook?

Not disclosed - outlook.com

Depends. Buy it if your organization already runs Microsoft 365 — Outlook is the default, deeply integrated client there. Skip it for personal or privacy-sensitive use; free clients like Thunderbird cover the basics without the CVE churn or forced New Outlook migration.

Confidence

Medium. Based on 40+ public sources; many review snippets were truncated, and no exact dollar prices appeared in the evidence.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support quality
  • Security posture

Pricing

Free

Outlook.com Free

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
Microsoft 365 Personal/FamilySubscription (price not shown in sources)
Microsoft 365 BusinessPer-user subscription

Best for

  • Microsoft 365 organizations
  • Exchange-server email shops
  • Teams that need mail+calendar+contacts unified
  • Add-in and signature ecosystems

Not for

  • Privacy-sensitive users wanting minimal attack surface
  • Non-Microsoft shops facing forced New Outlook migration
  • Buyers wanting one simple standalone email price
  • Anyone unwilling to patch within days of CVEs

Gotchas - check before you buy

high

Classic Outlook is being retired; New Outlook drops features some workflows rely on.

high

Personal accounts are frequent phishing and hijack targets; enable 2FA immediately.

medium

Advanced security features are gated behind a Microsoft 365 subscription.

medium

Business email requires a Microsoft 365 per-user subscription; no standalone listed price in sources.

Pros and cons

Pros

  • Free email and calendar without a subscription
  • Called the most capable email client in expert reviews
  • Copilot AI support documented in real deployments
  • Large add-in ecosystem: signatures, security, integrations
  • Bundled across Microsoft 365 business and enterprise plans

Cons

  • New Outlook migration stripped features; strong user backlash
  • Repeated critical vulnerabilities, including zero-click RCE
  • Users report account compromises after data breaches
  • FBI warns attackers hijack Microsoft 365 logins at scale

Sources & method

Analyzed 9/24/2026 - 13 sources - Actively targeted: multiple critical RCE CVEs patched 2024–2026; fast patching and 2FA are mandatory.

official x4review x5security x3news x1
  • CVE-2024-21413 — Remote Code Execution, Critical RCE (MonikerLink) in Outlook; public proof-of-concept exists.
  • Zero-click vulnerability, May 2026 patch, Microsoft patched a critical zero-click Outlook vulnerability.
  • CVE-2026-42893 — RCE, Remote code execution vulnerability tracked in SentinelOne's database.
  • CVE-2025-32705, Outlook vulnerability detailed in NIST's National Vulnerability Database.

Key stats

  • Value for money: 4/5

    Rating

  • Free

    Starting price

  • 13

    Sources

  • Analyzed

  • Value for money: 4/5. Free tier; included in Microsoft 365 plans
  • Ease of use: 2/5. New Outlook migration drew heavy user backlash
  • Feature depth: 4/5. Reviewers call it the most capable client
  • Support quality: 2/5. Microsoft Q&A threads show unresolved complaints
  • Security posture: 2/5. Stream of critical RCE CVEs; FBI hijack warnings
  • 3,536 G2 reviews filterable on G2
  • 2,687 Trustpilot reviewers outlook.live.com
  • Yes Free tier free email and calendar
  • 4+ Recent CVEs 2024–2026, incl. RCE and zero-click

Pricing

Outlook.com Free

Free

  • Free email and calendar
  • Advanced security requires paid 365

Microsoft 365 Personal/Family

Subscription (price not shown in sources)

  • Ad-free premium Outlook
  • Advanced security features

Microsoft 365 Business

Per-user subscription

  • Custom-domain business email
  • Full Outlook desktop and mobile

Security

Actively targeted: multiple critical RCE CVEs patched 2024–2026; fast patching and 2FA are mandatory.

  • CVE-2024-21413 — Remote Code ExecutionCritical RCE (MonikerLink) in Outlook; public proof-of-concept exists.⁹
  • Zero-click vulnerability, May 2026 patchMicrosoft patched a critical zero-click Outlook vulnerability.10
  • CVE-2026-42893 — RCERemote code execution vulnerability tracked in SentinelOne's database.11
  • CVE-2025-32705Outlook vulnerability detailed in NIST's National Vulnerability Database.

What users say

Long-time users praise its depth but many are furious about the forced New Outlook migration and recurring security incidents.

“the new Microsoft Outlook is pure garbage”
Reddit, r/Outlook
“Outlook continues to be an absolute disgrace.”
Reddit, r/Outlook
“Alternatives to the inferior "New Outlook"”
Microsoft Learn Q&A

Alternatives

Compare Outlook with each alternative.

  • Thunderbird

    Free, open-source, no Microsoft lock-in

  • Mailbird

    Lighter Windows client, simpler to run

    Outlook vs Mailbird

  • MDaemon Email Server

    Private on-prem email server, G2-recognized

Companies that use it

  • Johns Hopkins University13
Full analysis

Based on 40+ public sources; many review snippets were truncated, and no exact dollar prices appeared in the evidence.

Great inside Microsoft 365; painful outside it. Free tier exists, but critical CVEs land often — patch fast, use 2FA.

Methodology

Based on 40+ public sources; many review snippets were truncated, and no exact dollar prices appeared in the evidence.

Sources

  1. Microsoft Outlook Reviews - G2g2.com
    review
  2. Outlook Mail Reviews - Trustpilottrustpilot.com
    review
  3. New Outlook For Windows Honest Review 2026 - Clean Emailclean.email
    review
  4. Microsoft Outlook Review - Flozicflozic.ai
    review
  5. The new Microsoft Outlook is pure garbage - Redditreddit.com
    review
  6. Alternatives to the inferior New Outlook - Microsoft Learnlearn.microsoft.com
    official
  7. Compare Microsoft 365 Plans & Pricingmicrosoft.com
    official
  8. Outlook for Windows - Microsoft 365microsoft.com
    official
  9. CVE-2024-21413 RCE - Armisarmis.com
    security
  10. Zero-Click Outlook Vulnerability May 2026 - BurgiTechburgitech.com
    security
  11. CVE-2026-42893 - SentinelOnesentinelone.com
    security
  12. FBI: attackers hijacking Microsoft 365 logins - The Hillthehill.com
    news
  13. Johns Hopkins Copilot for M365 in Outlook case studyit.johnshopkins.edu
    official

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