Identified - W have been made aware of an issue with Zendesk Talk causing the error message, "Talk us unavailable right now." The Zendesk team is working on a resolution.
Oct 10, 2025 - 11:54 EDT
Rebel.com's home for real-time updates on our services. This page will be updated frequently if any outages occur to give you access to the most recent information available. Have an issue not shown here? Our Customer Support team is available.
Resolved -
This incident has been resolved.
Oct 21, 08:34 EDT
Identified -
We are aware that we have an issue across multiple Zendesk services including calls. Our engineering team is now doing their best to resolve the issue. We continue to work with our Cloud provider on the issues impacting multiple Zendesk product. We apologize that we do not have a substantive or positive update regarding full recovery, but we want to keep you up to date on the latest. We thank you for your patience and understanding while we work through this severe service interruption. We'll send updates as they become available.
Oct 20, 14:44 EDT
Some customers using Rebel Cloud Email encountered issues when attempting to send email via external providers, such as Gmail or Yahoo, using the “Send As” feature.
Affected users received bounce-back messages stating: “550 5.7.1 Authentication Refused – OXSUS003_207”, which indicated their messages were being rejected during SMTP authentication.
-------------------
Cause:
A temporary configuration change within our outbound email authentication system led to legitimate SMTP sessions being mistakenly flagged and rejected. This specifically impacted users sending email through third-party platforms that authenticate using Rebel Cloud Email credentials.
-------------------
What We Did:
Our engineering team worked with our email infrastructure provider to review and resolve the underlying authentication layer issue. As of 9:30 AM EDT, the error has stopped occurring and affected services are back to normal.
---------------
Next Steps:
We will continue monitoring for any further anomalies and are implementing additional safeguards to ensure external SMTP connections are correctly processed without disruption.
----------------
What You Can Do:
If you previously experienced bounce-back errors when sending via Gmail, Yahoo, or other external apps — you may now try again. The issue has been resolved.
If you continue to receive errors, please contact our support team with a copy of the message for review.
----------
We sincerely apologize for any inconvenience this caused, and we appreciate your patience as we worked to restore full service.
We are currently investigating an issue affecting **outbound email delivery** for clients using third-party email platforms like **Gmail**, **Yahoo**, or similar services via the “Send mail as” feature.
Some users have reported bouncebacks or failed sends with the following error:
Resolved -
This incident has been resolved.
Oct 14, 17:08 EDT
Update -
We are continuing to investigate this issue.
Oct 12, 14:12 EDT
Investigating -
Investigating - We are currently investigating an issue affecting Cloud Email services for some clients. Users have reported errors such as:
Webmail: “IMAP server refuses to import one or more emails” and “Failed to load messages” General: Delays in receiving new emails and slow performance on the webmail portal Additional symptoms: Inability to delete messages from inbox
Our team is actively looking into the issue and working to identify the root cause. We will provide further updates as soon as more information becomes available.