DuoCircle vs AT&T Comparison (2025)

What are the differences between DuoCircle and AT&T?

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.AT&T

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.

AT&T

AT&T Mail is now Yahoo Mail
"AT&T Mail is now Yahoo Mail"
  • 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$5/mo
Requires 3rd partyStorage5000 GB
50 MBAttachments25 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTP❌ No longer supported
❌ Requires 3rd partyIMAP❌ No longer supported
❌ Requires 3rd partyPOP3❌ No longer supported
YesAPINo
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.
Photo by Forward Email
Visit Website
Closed-source

AT&T

AT&T is a closed-source email service. Their website says: AT&T Mail is now Yahoo Mail

AT&T is a closed-source email service.
Screenshot by Forward Email
Visit Website

Compare DuoCircle with 78 email services