Fastmail vs Mailgun Comparison (2026)

Compare Fastmail vs Mailgun 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 Fastmail. We also support webmail: https://mail.forwardemail.net

Email Service Comparison

20 facts in comparison
Fastmailvs.Mailgun

Fastmail

Fast, private email that’s just for you
"Fast, private email that’s just for you"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

Mailgun

Flexible, scalable, and results driven email sending platform
"Flexible, scalable, and results driven email sending platform"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$3/moPricing$35/mo
2 GBStorageNo Mailgun does not support storage
70 MBAttachments25 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
YesSMTPYes
YesIMAPNo
YesPOP3No
NoAPIYes
NoE2EE No
⚠️ Fastmail does support PGP, but not in their webmail; see this blog post for insightOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

Fastmail

Fastmail is a closed-source email service. According to their website: Fast, private email that’s just for you

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

Mailgun

Mailgun is a closed-source email service. Its description from its website is: Flexible, scalable, and results driven email sending platform

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