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SpamHero Business Email Security

spamhero.com

From $5/mo Free trial WebAPI
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Spec score 7.6 #5 of 19 in Cloud Email Security

What it is

SpamHero Business Email Security filters incoming email for a domain in the cloud, then forwards clean messages to the customer’s mail server. Its filters cover spam, viruses, and malware, including Microsoft Office macros. A searchable quarantine lets users inspect and recover messages, and three redundant mail servers in separate data centers can queue mail for up to five days when the customer’s mail server is unavailable. SpamHero documents routing Microsoft 365 mail through its service and connects with Microsoft Entra ID to set up valid email addresses; Google Workspace support is also listed. Mail-server communication uses opportunistic TLS, and the service describes enforcing TLS for senders that support MTA-STS. Its REST API uses HTTP Basic authentication and allows 60 requests per minute per key. Support includes 24/7 chat and first-level phone support weekdays from 6am to 6pm Mountain Time. The free trial lasts 30 days and requires no payment information; there is no free plan. Pricing is per domain, with Lite at $5 a month at the introductory annual-prepayment rate.

Spec sheet

Trial
The 30-day trial is free and requires no payment information to start.Read 4 Oct 2026 · spamhero.com
API
SpamHero provides a REST API using HTTP Basic authentication and limits each API key to 60 requests per minute.Read 4 Oct 2026 · spamhero.com
Support
SpamHero offers 24/7 chat support and first-level phone support Monday through Friday from 6am to 6pm Mountain Time.Read 4 Oct 2026 · spamhero.com
Headquarters
Pleasant Grove, Utah, USARead 28 Sep 2026 · spamhero.com
Company
SpamHero says it is a service of iSparks, inc.Read 4 Oct 2026 · spamhero.com
Directory integration
SpamHero connects to Microsoft Entra ID through the Microsoft Graph API to set up valid email addresses.Read 4 Oct 2026 · spamhero.com
Email continuity
The FAQ says three redundant mail servers in separate data centers can queue email for up to five days if the customer’s mail server is unavailable.Read 4 Oct 2026 · spamhero.com
Email security
SpamHero provides opportunistic TLS encryption for mail-server communication and describes enforcing TLS for senders that support MTA-STS.Read 4 Oct 2026 · spamhero.com
Filter rules
The pricing page says the service uses over 22 million filter rules and tracks over 100 million senders.Read 4 Oct 2026 · spamhero.com
GDPR
SpamHero says it appointed EU and UK GDPR representatives and can provide a data processing addendum that includes Standard Contractual Clauses.Read 4 Oct 2026 · spamhero.com
Microsoft 365
SpamHero documents configuring Microsoft 365 mail flow to route messages through its filtering service.Read 4 Oct 2026 · spamhero.com
Quarantine
SpamHero provides a searchable quarantine with options to view and recover quarantined messages.Read 4 Oct 2026 · spamhero.com
Service type
SpamHero filters a domain’s incoming email in its cloud service and forwards clean mail to the customer’s mail server.Read 4 Oct 2026 · spamhero.com
Threat filtering
The plans page lists spam, virus, and malware filtering, including a Microsoft Office macro filter.Read 4 Oct 2026 · spamhero.com

Plans and prices

Lite $5 a month $5/mo per domain, introductory rate with annual prepayment; then $7/mo, $84/yr annually or $8/mo, $96/yr monthly 25,000 inbound emails · 50 MB inbound message limit · 7-day archive · outbound SMTP not included Read 4 Oct 2026 · spamhero.com
Basic $7 a month $7/mo per domain, introductory rate with annual prepayment; then $9/mo, $108/yr annually or $10/mo, $120/yr monthly 50,000 inbound emails · 100 MB inbound message limit · 15-day archive · outbound SMTP not included Read 4 Oct 2026 · spamhero.com
Standard $9 a month $9/mo per domain, introductory rate with annual prepayment; then $14/mo, $168/yr annually or $15/mo, $180/yr monthly 100,000 inbound emails · 200 MB inbound message limit · 5,000 outbound relays · 50 MB outbound message limit · 30-day archive Read 4 Oct 2026 · spamhero.com
Enterprise $99 a month $99/mo per domain; $99/mo, $1188/yr for first-year prepayment, annual prepayment, or monthly pricing 200,000 inbound emails · 400 MB inbound message limit · 10,000 outbound relays · 50 MB outbound message limit · 30-day archive · unlimited quarantine users Read 4 Oct 2026 · spamhero.com

Every SpamHero Business Email Security plan and price →

Strong points and limits

Strong points

  • Filters spam, viruses, malware, and Office macros.
  • Searchable quarantine supports viewing and message recovery.
  • Can queue email for up to five days.
  • Supports Microsoft 365 and Google Workspace.
  • 24/7 chat support is listed.

Limits

  • No free plan is listed.
  • Lite excludes outbound SMTP.
  • Lite limits inbound messages to 25,000.
  • Lite archive lasts seven days.

Who it suits

SpamHero suits organizations that want cloud filtering in front of a domain’s mail server, including Microsoft 365 or Google Workspace users. Its quarantine, continuity queue, and API are relevant to teams managing email security and delivery.

Verdict

SpamHero combines inbound filtering, quarantine, and queued delivery if a customer mail server is unavailable. Compare the per-domain plan limits, archive duration, and outbound SMTP inclusion before choosing a tier.

Where Specifiction places it

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