Email Marketing Platforms · reliability comparison

Campaign Monitor vs MailerLite: which is more reliable? (2026)

MailerLite is more reliable than Campaign Monitor, scoring 100.0 vs 59.2 out of 100. Over the last 90 days Campaign Monitor reported 1 incident and MailerLite reported 0, with effective uptime of 99.50% and 100% respectively.

Data updated Nov 1, 2026 · How we score

MetricCampaign MonitorMailerLite
Reliability score59.2100.0
Rank (email marketing platforms)#12#2
Uptime (90 days)99.50%100%
Incidents (90 days)10
Partial / major outages00
Avg time to resolve3d—
Outages we detected00
Transparency score100/100100/100

Where Campaign Monitor and MailerLite differ

  • MailerLite reported no incidents in the last 90 days, while Campaign Monitor reported 1.
  • Campaign Monitor's longest outage on record lasted 1h 9m (Jul 16, 2026); MailerLite's lasted 7h 32m (Feb 27, 2026).

90-day uptime

Campaign Monitor

Aug 4, 2026 – Sep 3, 2026: no incidentsSep 4, 2026: 92.08% uptime, 1 incident (Degraded performance)Sep 5, 2026: 85.00% uptime, 1 incident (Degraded performance)Sep 6, 2026: 85.00% uptime, 1 incident (Degraded performance)Sep 7, 2026: 92.91% uptime, 1 incident (Degraded performance)Sep 8, 2026 – Nov 1, 2026: no incidents
90 days ago99.500% average daily uptimeToday

MailerLite

Aug 4, 2026 – Nov 1, 2026: no incidents
90 days ago100% average daily uptimeToday

Recent Campaign Monitor incidents

Full Campaign Monitor reliability report →

Recent MailerLite incidents

  • MaintenanceAug 14, 2026 · ongoing

    MailerLite Maintenance

    Affected: MailerLite Links & tracking, MailerLite Landing pages & websites, MailerLite Email sending

Full MailerLite reliability report →

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