Email Marketing Platforms · monthly outage report
Email Marketing Platforms outages: May 2026
The 15 email marketing platforms we track reported 13 incidents in May 2026. Klaviyo reported the most (5). 9 had a clean month: AWeber, Brevo, Campaign Monitor, Constant Contact, Kit (ConvertKit), Mailchimp, MailerLite, Moosend, beehiiv.
| Vendor | Incidents | Partial / major |
|---|---|---|
| Klaviyo | 5 | 1 |
| HubSpot Marketing Hub | 3 | 0 |
| GetResponse | 2 | 1 |
| ActiveCampaign | 1 | 0 |
| Drip | 1 | 0 |
| Omnisend | 1 | 0 |
| AWeber | 0 | 0 |
| Brevo | 0 | 0 |
| Campaign Monitor | 0 | 0 |
| Constant Contact | 0 | 0 |
| Kit (ConvertKit) | 0 | 0 |
| Mailchimp | 0 | 0 |
| MailerLite | 0 | 0 |
| Moosend | 0 | 0 |
| beehiiv | 0 | 0 |