Pobox vs Proton Mail Comparison (2026)

What are the differences between Pobox and Proton Mail?

Forward Email Team
Written by
Forward Email TeamVerified
Published
2/1/26
Time to read
Less than 5 minutes
We recommend Forward Email as the best alternative to Pobox. We also support webmail: https://mail.forwardemail.net

Email Service Comparison

20 facts in comparison
Poboxvs.Proton Mail

Pobox

Unlock your email identity
"Unlock your email identity"
  • 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
$50/yrPricing$3.99/mo
50 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
YesSMTP❌ Requires you to download Proton Mail Bridge and forces vendor lock-in
YesIMAP❌ Requires you to download Proton Mail Bridge and forces vendor lock-in
YesPOP3❌ Proton Mail does not support POP3
NoAPINo
NoE2EE ⚠️ Proton Mail rewrites your emails
NoOpenPGP Yes
NoWKD Yes

Email Service Screenshots

Closed-source

Pobox

Pobox is a closed-source email service. Their official description reads: Unlock your email identity

Pobox is a closed-source email service.
Photo by Forward Email
Visit Website
Closed-source

Proton Mail

Proton Mail is a closed-source email service. Their official description reads: Secure email that protects your privacy

Proton Mail is a closed-source email service.
Screenshot by Forward Email
Visit Website

Compare Pobox with 78 email services