Mailinblack vs Proofpoint Comparison (2025)

What are the differences between Mailinblack and Proofpoint?

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 Mailinblack.

Email Service Comparison

20 facts in comparison
Mailinblackvs.Proofpoint

Mailinblack

Your cybersecurity is our job
"Your cybersecurity is our job"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

Proofpoint

The leader in human-centric cybersecurity
"The leader in human-centric cybersecurity"
  • 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 teamPricingSee Proofpoint plans (requires you to talk to a sales team) (according to a Reddit thread it may cost upwards of +$1000-2000 per month)
Requires 3rd partyStorageUnknown
UnknownAttachments150 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTP❌ Requires 3rd party
❌ Requires 3rd partyIMAP❌ Requires 3rd party
❌ Requires 3rd partyPOP3❌ Requires 3rd party
YesAPIYes
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

Mailinblack

Mailinblack is a closed-source email service. Its description from its website is: Your cybersecurity is our job

Mailinblack is a closed-source email service.
Photo by Forward Email
Go to site
Closed-source

Proofpoint

Proofpoint is a closed-source email service. Their official description reads: The leader in human-centric cybersecurity

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

Compare Mailinblack with 78 email services