Altospam vs SimpleLogin Comparison (2026)

What are the differences between Altospam and SimpleLogin?

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 Altospam.

Email Service Comparison

20 facts in comparison
Altospamvs.SimpleLogin

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.

SimpleLogin

Receive and send emails anonymously
"Receive and send emails anonymously"
  • 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$4/mo
Requires 3rd partyStorageNo SimpleLogin does not support storage
UnknownAttachments25 MB
NoOpen-SourceYes
NoSandboxed Encryption No
NoUnlimited DomainsYes
NoUnlimited AliasesYes
NoTTI No
❌ Requires 3rd partySMTPNo
❌ Requires 3rd partyIMAPNo
❌ Requires 3rd partyPOP3No
YesAPINo
NoE2EE ⚠️ Opt-in
NoOpenPGP Yes
NoWKD No

Email Service Screenshots

Closed-source

Altospam

Altospam is a closed-source email service. Its description from its website is: Antispam, Antivirus & Anti-Phishing Software

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

SimpleLogin

SimpleLogin is an open-source email service. Their official description reads: Receive and send emails anonymously

SimpleLogin is an open-source email service.
Photograph by Forward Email
Visit Website

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