Communication
Campaign Monitor
Campaign Monitor is an email marketing platform designed for agencies and marketers who need beautifully branded campaigns and strong deliverability.
What is Campaign Monitor?
Campaign Monitor was founded in Sydney in 2004 by a small design agency that needed a better tool for sending email newsletters to clients. That origin shaped everything about it: the platform became known for some of the cleanest, most design-forward email templates in the industry, and for a developer-friendly API that let agencies build branded email experiences into client products. Campaign Monitor grew steadily to serve over 150,000 businesses worldwide before being acquired by Marigold (formerly CM Group), which has consolidated it alongside several other email marketing brands.
The platform's API is genuinely powerful — transactional email, list management, campaign triggering, and subscriber segmentation are all accessible programmatically, which made Campaign Monitor a popular choice for developers building email into SaaS products. It processes significant sending volumes, particularly through agency relationships where a single Campaign Monitor account may be managing email for dozens of end clients. That multi-tenancy model means platform-level disruptions can cascade across many brands simultaneously.
When Campaign Monitor is down or degraded, the failure patterns are fairly recognisable. The web application may refuse to load or become intermittently unreachable. API calls return 500 or 503 errors, causing transactional sends to fail silently or queue without processing. Campaign scheduling can break, causing campaigns to not send at their configured time. Reporting data may stop updating, which leaves senders blind to delivery rates and open tracking during active campaigns.
Outage.gg tracks Campaign Monitor service status using real-time reports from developers, marketers, and agencies. If the platform is unresponsive or API sends are failing, the live status page will show whether it is an isolated incident or widespread disruption.
Common Campaign Monitor Problems
Issues users most frequently report when Campaign Monitor is having problems.
Messages not sending
Messages appear stuck, fail to deliver, or recipients are not receiving them.
Login & authentication
Unable to sign in, 2FA not working, or being unexpectedly logged out.
Feed & content not loading
Posts, stories, or notifications are not appearing or are failing to refresh.
App & website errors
The app or website returns error pages, crashes, or is completely unreachable.
Frequently Asked Questions
Common questions about Campaign Monitor outages and server status.
You can check the live Campaign Monitor server status at outage.gg/services/campaign-monitor. The page shows real-time community-submitted outage reports, an hourly trend chart, and the current health status.
Campaign Monitor can stop working for a number of reasons including scheduled maintenance windows, unexpected server failures, network infrastructure problems, or DDoS attacks. Check the live status page on Outage.gg for the latest community reports to see if others are experiencing the same issue.
Go to outage.gg/services/campaign-monitor and click the "Report an Issue" button. Your report is counted immediately and helps confirm whether a problem is widespread. Reports from multiple users trigger a status change visible to everyone watching the page.
Click the "Notify Me" bell button on the Campaign Monitor status page at outage.gg/services/campaign-monitor. Create a free account and we will send you an email the moment Campaign Monitor comes back online — no app download required.
Many services maintain official status pages with planned maintenance notices. Outage.gg aggregates real-time community-reported outages which often surface faster than official channels.
Related Services
Other services you might be tracking alongside Campaign Monitor.
