SMTP2GO vs Postmark Comparison (2026)

What are the differences between SMTP2GO and Postmark?

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 SMTP2GO. We also support webmail: https://mail.forwardemail.net

Email Service Comparison

20 facts in comparison
SMTP2GOvs.Postmark

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
  • Qualys SSL Labs SSL Server Test
vs.

Postmark

The email delivery service that people actually like
"The email delivery service that people actually like"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$10/moPricing$15/mo
No SMTP2GO does not support storageStorageNo Postmark does not support storage
50 MBAttachments10 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI TTI
YesSMTPYes
NoIMAPNo
NoPOP3No
YesAPIYes
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

SMTP2GO

SMTP2GO is a closed-source email service. According to their website: Like a first-class courier, for email

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

Postmark

Postmark is a closed-source email service. Their official description reads: The email delivery service that people actually like

Postmark is a closed-source email service.
Photograph by Forward Email
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Compare SMTP2GO with 78 email services