Altospam vs Tutanota Comparison (2026)

What are the differences between Altospam and Tutanota?

Forward Email Team
Written by
Forward Email TeamVerified
Published
2/1/26
Time to read
Less than 5 minutes
We recommend Forward Email as the best alternative to Altospam. We also support webmail: https://mail.forwardemail.net

Email Service Comparison

20 facts in comparison
Altospamvs.Tutanota

Altospam

Antispam, Antivirus & Anti-Phishing Software
"Antispam, Antivirus & Anti-Phishing Software"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
vs.

Tutanota

Secure, green and ad-free. Email to feel good about
"Secure, green and ad-free. Email to feel good about"
  • Hardenize Test
  • Internet.nl Site Test
  • Internet.nl Mail Test
  • Mozilla HTTP Observatory Grade
  • Qualys SSL Labs SSL Server Test
Requires you to talk to a sales teamPricing€36/yr
Requires 3rd partyStorage20 GB
UnknownAttachments25 MB
NoOpen-Source❌ Tutanota claims to be open-source, but their back-end is actually closed-source
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTPNo
❌ Requires 3rd partyIMAPNo
❌ Requires 3rd partyPOP3No
YesAPINo
NoE2EE No
NoOpenPGP ⚠️ Tutanota does not support PGP
NoWKD No

Email Service Screenshots

Closed-source

Altospam

Altospam is a closed-source email service. Their website says: Antispam, Antivirus & Anti-Phishing Software

Altospam is a closed-source email service.
Photo by Forward Email
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Closed-source

Tutanota

Tutanota is a closed-source email service. Their website says: Secure, green and ad-free. Email to feel good about

Tutanota is a closed-source email service.
Photograph by Forward Email
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Compare Altospam with 78 email services