ImprovMX vs HEY Comparison (2025)

What are the differences between ImprovMX and HEY?

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 ImprovMX.

Email Service Comparison

20 facts in comparison
ImprovMXvs.HEY

ImprovMX

Create free email aliases for your domain name
"Create free email aliases for your domain name"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

HEY

We finally fixed your email + calendar!
"We finally fixed your email + calendar!"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$9/moPricing$99/yr + $12/mo per user
No ImprovMX does not support storageStorage100 GB
50 MBAttachmentsHEY does not use regular email attachments, which also prevents them from being encrypted with PGP
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
TTI TTI No
YesSMTPNo
NoIMAPNo
NoPOP3No
YesAPINo
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

ImprovMX

ImprovMX is a closed-source email service. According to their website: Create free email aliases for your domain name

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

HEY

HEY is a closed-source email service. Their official description reads: We finally fixed your email + calendar!

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