DuoCircle vs Amazon Workmail Comparison (2025)

What are the differences between DuoCircle 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 DuoCircle.

Email Service Comparison

20 facts in comparison
DuoCirclevs.Amazon Workmail

DuoCircle

Protect Email Against Phishing, Spam and Malware
"Protect Email Against Phishing, Spam and Malware"
  • 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
Requires you to talk to a sales teamPricing$4/mo
Requires 3rd partyStorage50 GB
50 MBAttachments25 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTPYes
❌ Requires 3rd partyIMAPYes
❌ Requires 3rd partyPOP3No
YesAPINo
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

DuoCircle

DuoCircle is a closed-source email service. According to their website: Protect Email Against Phishing, Spam and Malware

DuoCircle is a closed-source email service.
Screenshot by Forward Email
Go to site
Closed-source

Amazon Workmail

Amazon Workmail is a closed-source email service. Their website says: 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.
Photograph by Forward Email
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Compare DuoCircle with 78 email services