ActiveCampaign vs GMX Comparison (2026)

What are the differences between ActiveCampaign and GMX?

Forward Email Team
Written by
Forward Email TeamVerified
Published
1/1/26
Time to read
Less than 5 minutes
We recommend Forward Email as the best alternative to ActiveCampaign.

Email Service Comparison

20 facts in comparison
ActiveCampaignvs.GMX

ActiveCampaign

Postmark, the leading service for transactional email, is now part of ActiveCampaign
"Postmark, the leading service for transactional email, is now part of ActiveCampaign"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

GMX

Create a free email account fast
"Create a free email account fast"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$15/moPricing$29.99/yr
No ActiveCampaign does not support storageStorage65 GB
10 MBAttachments100 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
TTI TTI No
YesSMTPYes
NoIMAPYes
NoPOP3Yes
YesAPINo
NoE2EE No
NoOpenPGP Yes
NoWKD No

Email Service Screenshots

Closed-source

ActiveCampaign

ActiveCampaign is a closed-source email service. Their website says: Postmark, the leading service for transactional email, is now part of ActiveCampaign

ActiveCampaign is a closed-source email service.
Photo by Forward Email
Visit Website
Closed-source

GMX

GMX is a closed-source email service. Its description from its website is: Create a free email account fast

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

Compare ActiveCampaign with 78 email services