Heimdal vs Intercom Comparison (2026)

What are the differences between Heimdal and Intercom?

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 Heimdal.

Email Service Comparison

20 facts in comparison
Heimdalvs.Intercom

Heimdal

One Platform. Total Security.
"One Platform. Total Security."
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

Intercom

The only AI customer service solution you need
"The only AI customer service solution you need"
  • 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$39/mo
Requires 3rd partyStorageNo Intercom does not support storage
UnknownAttachments20 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTPNo
❌ Requires 3rd partyIMAPNo
❌ Requires 3rd partyPOP3No
YesAPI❌ See blog post
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

Heimdal

Heimdal is a closed-source email service. According to their website: One Platform. Total Security.

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

Intercom

Intercom is a closed-source email service. Their official description reads: The only AI customer service solution you need

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

Compare Heimdal with 78 email services