Startmail vs Spam Scanner Comparison (2025)

What are the differences between Startmail and Spam Scanner?

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 Startmail.

Email Service Comparison

20 facts in comparison
Startmailvs.Spam Scanner

Startmail

Private email you can trust
"Private email you can trust"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

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
$7/moPricingFree (built-in to Forward Email)
20 GBStorageRequires 3rd party
25 MBAttachmentsUnknown
NoOpen-SourceNo
❌ Startmail claims to use a User Vault, but this statement has not been audited and their source code is closed-sourceSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
YesSMTP❌ Requires 3rd party
YesIMAP❌ Requires 3rd party
YesPOP3❌ Requires 3rd party
NoAPIYes
⚠️ Supported if both sender and recipient are using OpenPGPE2EE No
⚠️ Supports OpenPGP, but does not support WKDOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

Startmail

Startmail is a closed-source email service. Their official description reads: Private email you can trust

Startmail is a closed-source email service.
Photo by Forward Email
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Closed-source

Spam Scanner

Spam Scanner is a closed-source email service. Their official description reads: Spam Scanner is the best anti-spam, email filtering, and phishing prevention service

Spam Scanner is a closed-source email service.
Photo by Forward Email
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Compare Startmail with 78 email services