What it does
MessageFlow combines marketing email with messages sent through an API or SMTP, and supports other communication channels. Its 30-day trial includes 100 emails and 100 contacts after registration. Sending stops at the end of the trial until paid access is activated, although the account panel remains accessible.
Count recipients by unique email address rather than list memberships. MessageFlow counts the same address once across lists and segments, and subscription contact overages are charged in started blocks of 1,000. Marketing sends and API-triggered sends have separate plan allowances, so estimate both a newsletter schedule and the application's receipt or notification traffic.
The 30-day trial includes 100 emails, 100 SMS messages and 100 contacts. A sandbox domain allows technical connection checks without setting up the team's own DNS first. When the trial ends, panel access remains but message sending stops until paid access is activated. Plan changes and cancellation go through the vendor team.
For delivery investigation, Email API Analytics turns API and SMTP logs into provider, recipient-domain, sender and bounce reports. Filter the affected sender, account and date range before changing the campaign. Discuss the analytics module with the account manager when choosing a plan.
The Starter offer includes 10,000 contacts, 20,000 marketing emails and 10,000 API emails per month. Its advertised introductory price is EUR 69 per month for the first six months for new users. Keep the introductory period in mind when comparing the ongoing cost with another service.
Strengths
- One email address is counted once across different lists and segments
- Provider, sender and bounce reports support targeted delivery investigation
Watch out for
- Trial expiry stops sending even though panel access remains
- Subscription contact overages are charged in started thousand-address blocks
Best for
- Teams coordinating marketing email with application-triggered communications
Sources
- Cross-Channel Communication Platform: Email, SMS, RCS, Push (Oct 26, 2026)
- Email API Analytics – SMTP/API Delivery Reports in One Dashboard (Oct 26, 2026)
- MessageFlow pricing (Oct 27, 2026)
