False-positive block from Spamhaus

Uptime Impact: 23 hours
Resolved
Updated
Resolved

Some of our clients faced an increased bounce rate over the weekend. It was not related to infrastructure issues, it appeared to be a false-positive block from Spamhaus on some of our IP addresses. We immediately contacted Spamhaus, and the issue was resolved; they confirmed it was a mistake and not related to Mailtrap. We are sorry for your inconvenience, we treat deliverability very seriously.

Began at:

Affected components
  • Email Sending API/SMTP
    • API
    • SMTP