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