Email Marketing Platforms · reliability comparison
Mailchimp vs Omnisend: which is more reliable? (2026)
Omnisend is more reliable than Mailchimp, scoring 100.0 vs 55.1 out of 100. Over the last 90 days Mailchimp reported 7 incidents and Omnisend reported 0, with effective uptime of 99.28% and 100% respectively.
Data updated Nov 1, 2026 · How we score
| Metric | Mailchimp | Omnisend |
|---|---|---|
| Reliability score | 55.1 | 100.0 |
| Rank (email marketing platforms) | #13 | #3 |
| Uptime (90 days) | 99.28% | 100% |
| Incidents (90 days) | 7 | 0 |
| Partial / major outages | 0 | 0 |
| Avg time to resolve | 1d 1h | — |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Mailchimp and Omnisend differ
- Omnisend reported no incidents in the last 90 days, while Mailchimp reported 7.
- Mailchimp's longest incident on record lasted 3d (Oct 9, 2026); Omnisend's lasted 19m (Apr 20, 2026).
90-day uptime
Mailchimp
Omnisend
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Mailchimp incidents
- Degraded performanceOct 29, 2026 · resolved (duration not published)
Access Issues and Errors Across Mailchimp
Affected: Access Issues and Errors Across Mailchimp
- Degraded performanceOct 27, 2026 · resolved in 1d 2h
Access Issues and Errors Across Mailchimp
Affected: Access Issues and Errors Across Mailchimp
- Degraded performanceOct 9, 2026 · resolved in 10d 12h
Cropped Images Disappearing in Campaigns
Affected: Cropped Images Disappearing in Campaigns
- Degraded performanceSep 11, 2026 · resolved in 2h 37m
Delayed updates to All Contacts table
Affected: Delayed updates to All Contacts table
- Degraded performanceAug 13, 2026 · resolved (duration not published)
Campaign links resulting in "500" errors.
Affected: Campaign links resulting in "500" errors.
- Degraded performanceAug 4, 2026 · resolved (duration not published)
Affected: Campaign Click Tracking Issue
Recent Omnisend incidents
No incidents reported by Omnisend in the last 90 days.
Other email marketing platforms to consider
- Drip · #1 · 100% uptime
- MailerLite · #2 · 100% uptime
- AWeber · #4 · 100% uptime
- HubSpot Marketing Hub · #5 · 100% uptime
See the full most reliable email marketing platforms ranking →