Yahoo vs Proton Mail Comparison (2025)

What are the differences between Yahoo and Proton Mail?

Forward Email Team
Written by
Forward Email TeamVerified
Published
7/1/25
Time to read
Less than 5 minutes
We recommend Forward Email as the best alternative to Yahoo.

Email Service Comparison

20 facts in comparison
Yahoovs.Proton Mail

Yahoo

Yahoo Mail Plus helps you gain the upper hand on clutter in your inbox
"Yahoo Mail Plus helps you gain the upper hand on clutter in your inbox"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

Proton Mail

Secure email that protects your privacy
"Secure email that protects your privacy"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$5/moPricing$3.99/mo
5000 GBStorage15 GB
25 MBAttachments25 MB
NoOpen-Source❌ Proton Mail claims to be open-source, but their back-end actually is closed source
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ No longer supportedSMTP❌ Requires you to download Proton Mail Bridge and forces vendor lock-in
❌ No longer supportedIMAP❌ Requires you to download Proton Mail Bridge and forces vendor lock-in
❌ No longer supportedPOP3❌ Proton Mail does not support POP3
NoAPINo
NoE2EE ⚠️ Proton Mail rewrites your emails
NoOpenPGP Yes
NoWKD Yes

Email Service Screenshots

Closed-source

Yahoo

Yahoo is a closed-source email service. According to their website: Yahoo Mail Plus helps you gain the upper hand on clutter in your inbox

Yahoo is a closed-source email service.
Photograph by Forward Email
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Closed-source

Proton Mail

Proton Mail is a closed-source email service. Its description from its website is: Secure email that protects your privacy

Proton Mail is a closed-source email service.
Photograph by Forward Email
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Compare Yahoo with 78 email services