OOPSpam vs Sendgrid Comparison (2025)

What are the differences between OOPSpam and Sendgrid?

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 OOPSpam.

Email Service Comparison

20 facts in comparison
OOPSpamvs.Sendgrid

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.

Sendgrid

Get your emails to the inbox—where they belong
"Get your emails to the inbox—where they belong"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$49/moPricing$19.95/mo
Requires 3rd partyStorageNo Sendgrid does not support storage
UnknownAttachments30 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTPYes
❌ Requires 3rd partyIMAPNo
❌ Requires 3rd partyPOP3No
YesAPIYes
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

OOPSpam

OOPSpam is a closed-source email service. Its description from its website is: Automate your Spam and Abuse Detection

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

Sendgrid

Sendgrid is a closed-source email service. Its description from its website is: Get your emails to the inbox—where they belong

Sendgrid is a closed-source email service.
Photo by Forward Email
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Compare OOPSpam with 78 email services