Mailofly vs SpinUp Email

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Mailofly compared with SpinUp Email
Detail	Mailofly	SpinUp Email
What it does	Fast, reliable, and secure email delivery platform for developers	Business email without the bloat
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Paid
Pricing	Free: 3,000 emails/month, 100 emails/day limit, 3 sending domains, no credit card required. Pro: $20/month for 50,000 emails/month, $0.90 per 1,000 overage. Scale: $75/month for 100,000 emails/month, $0.90 per 1,000 overage. Enterprise: Custom pricing for 3M+ emails/month with dedicated infrastructu	Standard Mailbox: $3.00 USD per mailbox/month (or $1.00/month billed annually). SpinUp Email Plus: $4.00 USD per mailbox/month (or $2.00/month billed annually). Archiving: $6.00 USD per mailbox/month (or $3.00/month billed annually). All plans backed by 30-day money-back guarantee. Save up to 67% wi
Key features	Sub-120ms API latency for email delivery 99.99% uptime guarantee with multi-region infrastructure Type-safe SDKs for TypeScript, Python, and Go Developer-first React and HTML templates Automatic SPF, DKIM, and DMARC verification Native Model Context Protocol (MCP) integration Supabase and database trigger integrations Business mailboxes with custom domains	25 GB mailbox storage and 30 GB file storage IMAP, POP, and SMTP access Premium spam and virus protection ActiveSync across desktop and mobile Shared calendars and contacts MS Office-compatible apps Instant messaging Unlimited storage for archived email Advanced search capabilities 24x7x365 expert human support
What makes it different	3.2x higher click engagement than competitors Generous free tier with 3,000 emails/month, no credit card required 40+ worldwide dispatch hubs for global reach	Free and easy migrations from existing email providers 30-day money-back guarantee with no long-term contracts No data mining or ads 100% targeted uptime
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 +1 (up) since last check	13 −1 (down) since last check
Trust Flow (Majestic)	3	3
Citation Flow (Majestic)	32	23
Referring domains (Majestic)	576	22

5 details filled in for both companies.

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