Related Products
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About
SpamRate is an email deliverability testing platform for teams that send newsletters, transactional messages, and marketing campaigns. Users send a test message to a set of seed mailboxes at Gmail, Outlook, Yahoo, and Zoho, and SpamRate reports where each copy was placed, separating the inbox from spam and from tabs such as Promotions. Every test also runs technical checks on the sending domain, covering SPF, DKIM, DMARC, MX, PTR, BIMI, MTA-STS, and DANE records, together with domain and IP blacklist lookups and an analysis of message content and authentication headers. The results are combined into a spam rate score alongside the specific issues that lowered it, and every test is stored so changes over time stay visible. Scheduled monitors repeat the tests and send alerts when placement or authentication changes. A WordPress plugin brings the same checks into the WordPress admin, and a set of DNS and domain diagnostic tools is available without an account.
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About
SuperMailOS is managed business email on your own domain for small teams. You bring your domain; SuperMailOS runs the mail server and handles deliverability — SPF, DKIM, DMARC, IP reputation, and warmup — so your email lands in the inbox, not the spam folder.
Setup takes minutes: verify your domain with one-click DNS on Cloudflare, DigitalOcean, and other providers (or guided copy-paste on any registrar), invite your team, and start sending. Every person gets a real mailbox; aliases like hello@ and support@ are unlimited and free.
Webmail is as simple as Gmail — threads, instant search, keyboard shortcuts, labels, dark mode — plus IMAP and SMTP for any mail app, and a live deliverability dashboard showing your mail landing.
Flat pricing per mailbox: Pro $3/mailbox/month annually (10 GB, 3 domains), Business $5 (30 GB, unlimited domains), custom at 50+. 14-day free trial, no credit card.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Marketing
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Audience
Small and medium businesses, startups, agencies, and freelancers who want professional email on their own domain without running a mail server or managing DNS and deliverability themselves.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and VideosNo images available
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Pricing
$19.99/month
Free Version
Supported
Free Trial
Not Supported
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Pricing
$3/month per mailbox
Free Version
Not Supported
Free Trial
Supported
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Reviews/
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Reviews/
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationSpamRate
Founded: 2026
Cyprus
spamrate.is
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Company InformationSuperMailOS
Founded: 2026
supermailos.com
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Alternatives |
Alternatives |
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Categories |
Categories |
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Email Deliverability Features
Deliverability Alerts
Supported
Deliverability Reporting
Supported
DMARC Analytics
Supported
Email Address Verification
Not Supported
Email Content Testing
Supported
Email Previewing
Not Supported
Inbox Placement Testing
Supported
IP Blacklist Monitoring
Supported
Reputation Reporting
Supported
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Integrations
Gmail
Supported
Microsoft Outlook
Supported
Yahoo! Mail
Supported
Zoho CRM
Supported
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Integrations
Gmail
Not Supported
Microsoft Outlook
Not Supported
Yahoo! Mail
Not Supported
Zoho CRM
Not Supported
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