Mailcheck pricing

I want to decide whether Mailcheck (mailcheck.co) is the right tool and which plan to pick.
Below is what the StableMRR pricing directory read from Mailcheck's own pricing page (last checked 2026-10-30). It can be out of date, so treat it as a starting point.

Category: Marketing / Email marketing
What it does: Email verification tool that validates addresses in bulk or via API to reduce bounces and clean mailing lists.
Plans:
- pro: $10/mo. Limits: emails to validate included 1,000, overage charge $0.005/1 mail. Includes: Email validation, Disposable email detection, Syntax checking, Domain validation, API access
- agency: $30/mo. Limits: emails to validate included 5,000, overage charge $0.004/1 mail. Includes: Email validation, Disposable email detection, Syntax checking, Domain validation, API access
- enterprise: $90/mo. Limits: emails to validate included 20,000, overage charge $0.003/1 mail. Includes: Email validation, Disposable email detection, Syntax checking, Domain validation, API access
- custom: Contact sales. Limits: Epic emails to validate included 100,000+, Legendary emails to validate included 1,000,000,000+. Includes: Email validation, Disposable email detection, Syntax checking, Domain validation, API access
Alternatives in the directory: Acumbamail, AddEvent, Bento, Bounceless
Pricing page: https://mailcheck.co/
Directory listing: https://stablemrr.com/p/mailcheck-co

First ask me three short questions about my team size, budget and what I need it for. Then recommend one plan, tell me what could make it a bad fit, and compare it with the alternatives. Finish with what I should check on the vendor's site before I pay.