Startmail vs 123 Reg Comparison (2025)

What are the differences between Startmail and 123 Reg?

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 Startmail.

Email Service Comparison

20 facts in comparison
Startmailvs.123 Reg

Startmail

Private email you can trust
"Private email you can trust"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

123 Reg

Professional email that shows you mean business
"Professional email that shows you mean business"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
$7/moPricing£35.88/yr
20 GBStorage10 GB
25 MBAttachments30 MB
NoOpen-SourceNo
❌ Startmail claims to use a User Vault, but this statement has not been audited and their source code is closed-sourceSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
YesSMTPYes
YesIMAPYes
YesPOP3Yes
NoAPINo
⚠️ Supported if both sender and recipient are using OpenPGPE2EE No
⚠️ Supports OpenPGP, but does not support WKDOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

Startmail

Startmail is a closed-source email service. Their official description reads: Private email you can trust

Startmail is a closed-source email service.
Screenshot by Forward Email
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Closed-source

123 Reg

123 Reg is a closed-source email service. According to their website: Professional email that shows you mean business

123 Reg is a closed-source email service.
Screenshot by Forward Email
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Compare Startmail with 78 email services