N‑able Mail Assure vs Proofpoint Comparison (2025)

What are the differences between N‑able Mail Assure 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 N‑able Mail Assure.

Email Service Comparison

20 facts in comparison
N‑able Mail Assurevs.Proofpoint

N‑able Mail Assure

Email protection to help you secure and scale
"Email protection to help you secure and scale"
  • 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
Depends on inbound/outbound (e.g. 10 MB)Attachments150 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

N‑able Mail Assure

N‑able Mail Assure is a closed-source email service. Their official description reads: Email protection to help you secure and scale

N‑able Mail Assure is a closed-source email service.
Photo by Forward Email
Visit Website
Closed-source

Proofpoint

Proofpoint is a closed-source email service. According to their website: The leader in human-centric cybersecurity

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

Compare N‑able Mail Assure with 78 email services