Mailosaur had 4 outages in the last 2 years totaling 5h 15m of downtime — averaging 0.2 incidents per month.
There were 4 Mailosaur outages since June 12, 2025 totaling 5h 15m of downtime. Each is summarised below — incident details, duration, and resolution information.
We’re aware of an issue affecting a small subset of customers that is preventing SMS messages from being delivered to their accounts. Our team is actively investigating, and we expect to restore normal service as soon as possible.
This incident has been resolved.
We're aware of an issue affecting some customers who are attempting to send emails to external addresses. As a result of a false-positive inclusion of one of our IP addresses in a blocklist, connections to some mail services are being rejected. The IP in question has since been removed from the list, but it may take several hours for this to propagate to other mail services. We are continuing to monitor this issue and will update when we're comfortable that this has been fully resolved.
This incident has been resolved.
Some customers were affected for several hours in certain regions due to a sustained performance degradation of our services. Services experienced significant activity increase, with a delayed scale up resulting in an inability to handle all API calls. This issue has now been resolved, we apologies to all those impacted by this.
We are experiencing issues with authentication and core services related to an upstream issue with Google Cloud services (https://status.cloud.google.com/) We will provide updates as soon as we have them, but hope to have normal service resumed shortly.
The following update has been provided by Google - "Our engineering team continues to investigate the issue. We will provide an update by Thursday, 2025-06-12 12:15 PDT with current details." Incident page: https://status.cloud.google.com/incidents/ow5i3PPK96RduMcb1SsW
A further update has been provided by Google - "Our engineers are continuing to mitigate the issue and we have confirmation that the issue is recovered in some locations. We do not have an ETA on full mitigation at this point." Incident page: https://status.cloud.google.com/incidents/ow5i3PPK96RduMcb1SsW
Google have now resolved the issue affecting our services - we are continue to monitor the situation.
This incident has now been resolved.