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Head-to-head · Personal Email Services

Outlook.com vs Yahoo Mail

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Outlook.com #2 in Personal Email Services 9.2/10 Free plan Free plan✓ 2 of 3 features Visit Outlook.com
Yahoo Mail #9 in Personal Email Services 8.3/10 Free plan · 14-day trial Free planFree trial✓ 2 of 3 features Visit Yahoo Mail

Outlook.com leads on 0 checks, Yahoo Mail on 1, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreOutlook.com · 9.2/10
  • Free planboth
  • Free trialonly Yahoo Mail

Outlook.com scores higher on our rubric for personal email services: 9.2 against 8.3 out of 10; our editors rank them #2 and #9.

Yahoo Mail leads on mailbox storage: 200 GB versus 100 GB. On platform access, Outlook.com gives you Web_mobile_desktop where Yahoo Mail offers Web_and_mobile.

Outlook.com is the better fit for people who use Microsoft services. Yahoo Mail is the better fit for free email with AI assistance.

  • Outlook.com fits best

    People who use Microsoft services

  • Yahoo Mail fits best

    Free email with AI assistance

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Outlook.com 9.2/10 Visit ↗ Yahoo Mail 8.3/10 Visit ↗
At a glance
Editor score 9.2 8.3
Ranking #2 in Personal Email Services #9 in Personal Email Services
Best for People who use Microsoft services Free email with AI assistance
Pricing model Free plan + paid Free plan + paid
Starting price — —
Free plan ✓ ✓
Free trial — 14 days
Deployment Cloud, Desktop, Mobile Cloud, Mobile
Platforms Web, Windows, macOS, iOS, Android Web, iOS, Android
Integrations 3 integrations 3 integrations
Features Outlook.com 2/3 · Yahoo Mail 2/3
Custom domain — Not checked yet
Email aliases ✓ ✓
Ad-free inbox ✓ ✓
Specs
Mailbox storage 100 GB 200 GB (best)
Attachment limit 25 MB 25 MB
Platform access Web_mobile_desktop Web_and_mobile
Our review
Pros
  • Free accounts include 15 GB of mailbox storage.
  • Aliases, inbox rules, Focused Inbox, and Sweep help organize email.
  • Connects with OneDrive, Box, and Dropbox for file sharing.
  • Inbox filtering, spam detection, and one-tap unsubscribe tools
  • Connects Gmail, Outlook, and AOL accounts
  • AI summaries and composition assistance, plus an email-linked Planner
Cons
  • Free accounts have less mailbox storage than the 100 GB paid tiers.
  • Ad-free email and calendar require a Microsoft 365 subscription.
  • Custom domains are not supported.
  • Standard provides 20 GB; 200 GB requires the paid Plus plan
  • The free Standard plan does not include the listed ad-free inbox
  • Paid-plan price and feature availability can vary by region
Our verdict

Outlook.com is Microsoft's personal email service, available through a browser and Outlook apps. It brings email, calendar, and contacts together with spam filtering and 15 GB of mailbox storage on the free plan. Focused Inbox, inbox…

Read the review →

Yahoo Mail is a personal email service for people who want a free inbox across the web, iOS, and Android, with organization tools and optional AI assistance. Its Standard plan includes 20 GB of mailbox storage, web and mobile access, and…

Read the review →
  1. Outlook.comPersonal Email Services 9.2Free plan
  2. Yahoo MailPersonal Email Services 8.3Free plan · 14-day trial

Strengths and trade-offs

  • Outlook.com — where it wins

    • Free accounts include 15 GB of mailbox storage.
    • Aliases, inbox rules, Focused Inbox, and Sweep help organize email.
    • Connects with OneDrive, Box, and Dropbox for file sharing.

    Where it doesn't

    • Free accounts have less mailbox storage than the 100 GB paid tiers.
    • Ad-free email and calendar require a Microsoft 365 subscription.
    • Custom domains are not supported.

  • Yahoo Mail — where it wins

    • Inbox filtering, spam detection, and one-tap unsubscribe tools
    • Connects Gmail, Outlook, and AOL accounts
    • AI summaries and composition assistance, plus an email-linked Planner

    Where it doesn't

    • Standard provides 20 GB; 200 GB requires the paid Plus plan
    • The free Standard plan does not include the listed ad-free inbox
    • Paid-plan price and feature availability can vary by region
  • Outlook.com9.2/10 · Free plan

    A capable free email service with useful organization tools and Microsoft 365 upgrades.

    Visit Outlook.comFull verdict →
  • Yahoo Mail8.3/10 · Free plan · 14-day trial

    A free personal inbox with useful organization tools and AI features; Plus adds storage and an ad-free inbox.

    Visit Yahoo MailFull verdict →

More comparisons

All personal email services comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update