Startmail vs Amazon Workmail Comparison (2025)

What are the differences between Startmail and Amazon Workmail?

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.Amazon Workmail

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.

Amazon Workmail

Amazon WorkMail is a secure, managed business email and calendar service with support for existing desktop and mobile email client applications
"Amazon WorkMail is a secure, managed business email and calendar service with support for existing desktop and mobile email client applications"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$7/moPricing$4/mo
20 GBStorage50 GB
25 MBAttachments25 MB
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
YesSMTPYes
YesIMAPYes
YesPOP3No
NoAPINo
⚠️ 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. According to their website: Private email you can trust

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

Amazon Workmail

Amazon Workmail is a closed-source email service. According to their website: Amazon WorkMail is a secure, managed business email and calendar service with support for existing desktop and mobile email client applications

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