Abnormal Security vs SMTP2GO Comparison (2025)

What are the differences between Abnormal Security and SMTP2GO?

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Published
4/1/25
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We recommend Forward Email as the best alternative to Abnormal Security.

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20 facts in comparison
Abnormal Securityvs.SMTP2GO

Abnormal Security

Cloud Email Security - Block Malicious Email Attacks
"Cloud Email Security - Block Malicious Email Attacks"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Test SSL serveru Qualys SSL Labs
vs.

SMTP2GO

Like a first-class courier, for email
"Like a first-class courier, for email"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Test SSL serveru Qualys SSL Labs
Requires you to talk to a sales teamCeny$10/mo
Requires 3rd partyStorageŽádný SMTP2GO does not support storage
UnknownAttachments50 MB
ŽádnýOpen-SourceŽádný
ŽádnýSandboxed Encryption Žádný
ŽádnýUnlimited DomainsŽádný
ŽádnýUnlimited AliasesŽádný
ŽádnýTTI Žádný
❌ Requires 3rd partySMTPAno
❌ Requires 3rd partyIMAPŽádný
❌ Requires 3rd partyPOP3Žádný
AnoAPIAno
ŽádnýE2EE Žádný
ŽádnýOpenPGP Žádný
ŽádnýWKD Žádný

Email Service Screenshots

Closed-source

Abnormal Security

Abnormal Security is a closed-source email service. Its description from its website is: Cloud Email Security - Block Malicious Email Attacks

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

SMTP2GO

SMTP2GO is a closed-source email service. Its description from its website is: Like a first-class courier, for email

SMTP2GO is a closed-source email service.
Photograph by Forward Email
Visit Website

Compare Abnormal Security with 79 email services