Yes, Mailsac has a permanent free tier alongside its paid plans. The free plan includes 1,500 operations per month, 50 message storage limit, and 1 enhanced address. FreeTier.co estimates the free tier at about $3.00/mo, and no credit card is required to sign up.
About
Mailsac is a disposable email testing platform for QA and software teams. It provides inboxes that can receive test messages immediately, along with REST APIs, web sockets, webhooks, and integrations for CI/CD and testing tools.
The service supports public @mailsac.com inboxes, private custom domains, zero-setup subdomains, email capture, message storage, and message logs. The pricing page lists a perpetual free Basic plan with public unlimited inboxes, 1,500 operations per month, 1 enhanced address, 50 stored messages, and 20 minutes of message logs.
- Disposable email inbox testing
- REST API and webhooks
- Zero-setup subdomains
- Public unlimited inboxes
- 1,500 operations per month
- 50 stored messages
- 20-minute message logs
- Private custom domains on paid plans
Free Tier Value
This free tier is genuinely usable, but it is tightly capped: 1,500 operations a month, only 50 stored messages, one enhanced address, and just 20 minutes of logs. Compared with the cheapest paid plan at $18/month, it feels like roughly 15-20% of that plan’s practical value, so about $3/month. No credit card is required, and the offer is perpetual rather than time-limited, which helps, but the usage caps keep the value modest.
What's included in the free tier
Verified
- Unlimited public inboxes.
- 1,500 operations per month.
- 50 message storage limit.
- 1 enhanced address.
- 20 minutes of message logs.
- Community forum support.
See Mailsac pricing for current limits.
Paid plans
Basic
- operations per month
- 1,500
- message storage
- 50 messages
- message logs
- 20 minutes
- enhanced addresses
- 1
- inboxes
- unlimited public
- Unlimited public inboxes
- 1 enhanced address
- 20 minutes of message logs
- Community forum support
- API access
- Email capture
- Tech info & attachments
Indie Plan
- operations per month
- 25,000
- message storage
- 1,000 messages
- enhanced addresses
- 50
- custom domains
- 1
- team seats
- 1
- Private inboxes
- 25,000 operations per month
- 50 enhanced addresses
- 1,000 message storage
- Custom domains
- Community support
- API access
Business Plan
- operations per month
- 2 million
- team seats
- 5
- custom domains
- 5
- enhanced addresses
- 250
- message storage
- 5,000 messages
- Private inboxes
- 2 million operations per month
- 5 team seats
- 250 enhanced addresses
- 5 custom domains
- SSO/SAML
- Analytics
Enterprise Plan
- operations per month
- 8 million
- team seats
- 15+
- custom domains
- 12+
- enhanced addresses
- 480
- message storage
- 12,000 messages
- Private inboxes
- 8 million operations per month
- 15+ team seats
- 12+ custom domains
- 480 enhanced addresses
- SSO/SAML
- Vendor due-diligence / cybersecurity audit
- Live/phone support
Pricing extracted from Mailsac's pricing page. Always verify current pricing before committing.
Common questions
Is Mailsac free forever?
Yes. Mailsac has a permanent free tier alongside its paid plans, though the allowance typically resets each month.
Does Mailsac require a credit card?
No. You can start on Mailsac's free tier without entering card details.
What happens when you exceed Mailsac's free tier?
You move to a paid plan. Mailsac's cheapest paid plan is Indie Plan at $18 / month.
What is Mailsac's free tier worth?
Mailsac's free tier is worth about $3.00 per month. That maps to an FTV score of 51/100. The FTV score is explained at freetier.co/ftv.
