Email Marketing Platforms · reliability comparison
ActiveCampaign vs Campaign Monitor: which is more reliable? (2026)
Campaign Monitor is more reliable than ActiveCampaign, scoring 59.2 vs 49.1 out of 100. Over the last 90 days ActiveCampaign reported 9 incidents and Campaign Monitor reported 1, with effective uptime of 98.10% and 99.50% respectively. ActiveCampaign resolves incidents faster on average (5h 36m).
Data updated Nov 1, 2026 · How we score
| Metric | ActiveCampaign | Campaign Monitor |
|---|---|---|
| Reliability score | 49.1 | 59.2 |
| Rank (email marketing platforms) | #13 | #12 |
| Uptime (90 days) | 98.10% | 99.50% |
| Incidents (90 days) | 9 | 1 |
| Partial / major outages | 7 | 0 |
| Avg time to resolve | 5h 36m | 3d |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where ActiveCampaign and Campaign Monitor differ
- ActiveCampaign reported 9× as many incidents as Campaign Monitor over the last 90 days (9 vs 1).
- ActiveCampaign had 7 partial or major outages, compared with 0 for Campaign Monitor.
- ActiveCampaign fixes problems faster: 5h 36m on average, against 3d for Campaign Monitor (12.9× quicker).
- ActiveCampaign's longest outage on record lasted 3d (Feb 10, 2026); Campaign Monitor's lasted 1h 9m (Jul 16, 2026).
90-day uptime
ActiveCampaign
Campaign Monitor
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent ActiveCampaign incidents
- Degraded performanceOct 27, 2026 · resolved in 35m
Delayed Processing for Imports, Exports, Bulk Actions, and Campaign sending.
Affected: Campaigns
- Major outageOct 22, 2026 · resolved in 8h 39m
Affected: API Availability, Email, API Availability, API Availability, SMS, ARC & ARC Services +36 more
- InformationalOct 20, 2026 · resolved in 13m
- Partial outageOct 8, 2026 · resolved in 3h 23m
Whatsapp message responses delayed
Affected: WhatsApp
- Major outageSep 28, 2026 · resolved in 3h 50m
Affected: Email
- Partial outageSep 14, 2026 · resolved in 26m
Bulk Edit of contacts is not applying filters.
Affected: CRM, CRM, CRM
Recent Campaign Monitor incidents
- Degraded performanceSep 4, 2026 · resolved in 17d 1h
- MaintenanceAug 9, 2026 · resolved in 1h 10m
Other email marketing platforms to consider
- Drip · #1 · 100% uptime
- MailerLite · #2 · 100% uptime
- Omnisend · #3 · 100% uptime
- AWeber · #4 · 100% uptime
See the full most reliable email marketing platforms ranking →