Spam Scanner vs Proton Mail Comparison (2026)

What are the differences between Spam Scanner 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 Spam Scanner. We also support webmail: https://mail.forwardemail.net

Email Service Comparison

20 facts in comparison
Spam Scannervs.Proton Mail

Spam Scanner

Spam Scanner is the best anti-spam, email filtering, and phishing prevention service
"Spam Scanner is the best anti-spam, email filtering, and phishing prevention service"
  • 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
Free (built-in to Forward Email)Pricing$3.99/mo
Requires 3rd partyStorage15 GB
UnknownAttachments25 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
❌ Requires 3rd partySMTP❌ Requires you to download Proton Mail Bridge and forces vendor lock-in
❌ Requires 3rd partyIMAP❌ Requires you to download Proton Mail Bridge and forces vendor lock-in
❌ Requires 3rd partyPOP3❌ Proton Mail does not support POP3
YesAPINo
NoE2EE ⚠️ Proton Mail rewrites your emails
NoOpenPGP Yes
NoWKD Yes

Email Service Screenshots

Closed-source

Spam Scanner

Spam Scanner is a closed-source email service. Its description from its website is: Spam Scanner is the best anti-spam, email filtering, and phishing prevention service

Spam Scanner is a closed-source email service.
Photograph 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.
Photograph by Forward Email
Visit Website

Compare Spam Scanner with 78 email services