OOPSpam vs Skiff Comparison (2025)

What are the differences between OOPSpam and Skiff?

Forward Email Team
Written by
Forward Email TeamVerified
Published
1/1/25
Time to read
Less than 5 minutes
We recommend Forward Email as the best alternative to OOPSpam.

Email Service Comparison

20 facts in comparison
OOPSpamvs.Skiff

OOPSpam

Automate your Spam and Abuse Detection
"Automate your Spam and Abuse Detection"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

Skiff

Privacy-first end-to-end encrypted email (NOTE: this company is no longer in business and shutting down service in August 2024)
"Privacy-first end-to-end encrypted email (NOTE: this company is no longer in business and shutting down service in August 2024)"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$49/moPricing$3/mo
Requires 3rd partyStorage15 GB
UnknownAttachments25 MB
NoOpen-Source❌ Skiff claims to be open-source, but their back-end is actually closed-source
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTP❌ Skiff does not support SMTP and forces vendor lock-in
❌ Requires 3rd partyIMAP❌ Skiff does not support IMAP and forces vendor lock-in
❌ Requires 3rd partyPOP3❌ Skiff does not support POP3 and forces vendor lock-in
YesAPINo
NoE2EE ⚠️ Supported, but Skiff manages your private keys and is closed-source
NoOpenPGP Yes
NoWKD Yes

Email Service Screenshots

Closed-source

OOPSpam

OOPSpam is a closed-source email service. Their official description reads: Automate your Spam and Abuse Detection

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

Skiff

Skiff is a closed-source email service. Their official description reads: Privacy-first end-to-end encrypted email (NOTE: this company is no longer in business and shutting down service in August 2024)

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

Compare OOPSpam with 79 email services