Sendgrid vs Mimecast Comparison (2026)

What are the differences between Sendgrid and Mimecast?

Forward Email Team
Written by
Forward Email TeamVerified
Published
1/1/26
Time to read
Less than 5 minutes
We recommend Forward Email as the best alternative to Sendgrid.

Email Service Comparison

20 facts in comparison
Sendgridvs.Mimecast

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
vs.

Mimecast

Email & Collaboration Security
"Email & Collaboration Security"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$19.95/moPricingSee Mimecast plans (requires you to talk to a sales team) (according to a Reddit thread it may cost upwards of +$1000-2000 per month)
No Sendgrid does not support storageStorageUnknown
30 MBAttachments200 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
YesSMTP❌ Requires 3rd party
NoIMAP❌ Requires 3rd party
NoPOP3❌ Requires 3rd party
YesAPIYes
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

Sendgrid

Sendgrid is a closed-source email service. Their official description reads: Get your emails to the inbox—where they belong

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

Mimecast

Mimecast is a closed-source email service. Their website says: Email & Collaboration Security

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

Compare Sendgrid with 78 email services