DuoCircle vs Barracuda Comparison (2026)

What are the differences between DuoCircle and Barracuda?

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 DuoCircle. We also support webmail: https://mail.forwardemail.net

Email Service Comparison

20 facts in comparison
DuoCirclevs.Barracuda

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.

Barracuda

Cybersecurity Solutions: Email, Apps, Network, Data
"Cybersecurity Solutions: Email, Apps, Network, Data"
  • 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 teamPricingRequires you to talk to a sales team
Requires 3rd partyStorageUnknown
50 MBAttachments100 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTP❌ Requires 3rd party
❌ Requires 3rd partyIMAP❌ Requires 3rd party
❌ Requires 3rd partyPOP3❌ Requires 3rd party
YesAPIYes
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

DuoCircle

DuoCircle is a closed-source email service. Its description from its website is: Protect Email Against Phishing, Spam and Malware

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

Barracuda

Barracuda is a closed-source email service. Its description from its website is: Cybersecurity Solutions: Email, Apps, Network, Data

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

Compare DuoCircle with 78 email services