Proofpoint vs Klaviyo Comparison (2026)

Compare Proofpoint vs Klaviyo email services. In-depth analysis of features, pricing, security, privacy, and storage to find the best email provider for your needs.

Forward Email Team
Written by
Forward Email TeamVerified
Published
4/1/26
Time to read
Less than 5 minutes
We recommend Forward Email as the best alternative to Proofpoint. We also support webmail: https://mail.forwardemail.net

Email Service Comparison

20 facts in comparison
Proofpointvs.Klaviyo

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
vs.

Klaviyo

Power smarter digital relationships
"Power smarter digital relationships"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
See Proofpoint plans (requires you to talk to a sales team) (according to a Reddit thread it may cost upwards of +$1000-2000 per month)Pricing$20/mo
UnknownStorageNo Klaviyo does not support storage
150 MBAttachments0 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTPNo
❌ Requires 3rd partyIMAPNo
❌ Requires 3rd partyPOP3No
YesAPINo
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

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.
Photo by Forward Email
Visit Website
Closed-source

Klaviyo

Klaviyo is a closed-source email service. According to their website: Power smarter digital relationships

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

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