Customer.io vs MailerSend
Side-by-side reliability comparison based on real-time monitoring data over the last 19 days.
Customer.io
Marketing automation platform for targeted messaging based on user behavior and data.
OperationalMailerSend
Transactional email service for developers with email API, SMTP relay, and email verification.
Operational| Metric | Customer.io | MailerSend |
|---|---|---|
| Current Status | Operational | Operational |
| Uptime (19-day) | 89.47% | 85.71% |
| Days with Issues | 2 | 1 |
| Feed Type | Statuspage | Statuspage |
| Status Page | View → | View → |
Customer.io vs MailerSend: Reliability Comparison
Choosing between Customer.io and MailerSend? Reliability matters. ServiceAlert.ai tracks both services in real time, monitoring their status pages for outages, degraded performance, and maintenance windows.
Over the last 19 days, Customer.io has maintained 89.47% uptime with 2 days of issues, while MailerSend has achieved 85.71% uptime with 1 day of issues.
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