Altospam vs SMTP2GO Comparison (2026)

Compare Altospam vs SMTP2GO 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 Altospam. We also support webmail: https://mail.forwardemail.net

Email Service Comparison

20 facts in comparison
Altospamvs.SMTP2GO

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.

SMTP2GO

Like a first-class courier, for email
"Like a first-class courier, for email"
  • 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$10/mo
Requires 3rd partyStorageNo SMTP2GO does not support storage
UnknownAttachments50 MB
NoOpen-SourceNo
NoSandboxed Encryption No
NoUnlimited DomainsNo
NoUnlimited AliasesNo
NoTTI No
❌ Requires 3rd partySMTPYes
❌ Requires 3rd partyIMAPNo
❌ Requires 3rd partyPOP3No
YesAPIYes
NoE2EE No
NoOpenPGP No
NoWKD No

Email Service Screenshots

Closed-source

Altospam

Altospam is a closed-source email service. According to their website: Antispam, Antivirus & Anti-Phishing Software

Altospam is a closed-source email service.
Screenshot by Forward Email
Go to site
Closed-source

SMTP2GO

SMTP2GO is a closed-source email service. Their official description reads: Like a first-class courier, for email

SMTP2GO is a closed-source email service.
Screenshot by Forward Email
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Compare Altospam with 78 email services