Communication
Mailgun
Mailgun is a transactional email API service used by developers to send, receive, and track emails programmatically at high volume for applications and platforms.
What is Mailgun?
Mailgun was built for developers from the start — an email API that offered straightforward HTTP endpoints for sending transactional and bulk email without the configuration burden of managing an SMTP server, warming IP addresses, or negotiating with ISPs over delivery reputation. Founded in 2010 and acquired by Rackspace before eventually becoming part of the Sinch communications platform, Mailgun carved out a strong position among developers building applications that send confirmation emails, password resets, notification digests, and marketing campaigns through code rather than a visual editor.
The platform provides a REST API and SMTP gateway for sending, along with inbound email routing that can parse incoming messages and deliver them to webhooks as structured JSON. Email validation endpoints help applications check whether addresses are deliverable before sending. The Mailgun dashboard shows real-time send statistics, bounce rates, complaint rates, and delivery logs with per-message tracking. IP pool management allows senders to separate transactional and marketing traffic onto different IP reputations. The Logs API and webhooks deliver event data (delivered, bounced, complained, unsubscribed) back to application backends for processing.
A Mailgun outage creates problems that vary significantly depending on which part of the infrastructure is affected. API send failures mean transactional emails — the ones with the highest urgency — stop going out entirely. Password reset emails that don't arrive leave users locked out of accounts. Order confirmation emails that fail to send generate customer service inquiries and chargebacks. SMTP gateway failures affect applications configured to use Mailgun as an SMTP relay rather than the REST API. Inbound routing failures mean replies to notifications or support emails never reach the receiving webhook, breaking reply-to workflows. Webhook delivery failures cause application event handlers to lose email delivery status updates, corrupting send analytics.
Outage.gg monitors Mailgun's service health in real time. Visit the live status page to check current API and delivery status.
Common Mailgun Problems
Issues users most frequently report when Mailgun 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 Mailgun outages and server status.
You can check the live Mailgun server status at outage.gg/services/mailgun. The page shows real-time community-submitted outage reports, an hourly trend chart, and the current health status.
Mailgun 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/mailgun 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 Mailgun status page at outage.gg/services/mailgun. Create a free account and we will send you an email the moment Mailgun 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.
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