US - Increased 503 Errors from Google API Services affecting Nylas API v3

Error rates have decreased significantly (approximately 10x lower than at the start of this incident) and have remained stable. While Google has not yet fully confirmed, we are treating this lower level of errors as the new normal. We will continue to monitor and work with Google as needed, but no further updates are expected.

Error rates have decreased by approximately 10x since the start of this incident, though they remain elevated compared to pre-incident levels. Google has escalated the issue to their Product team for further review to determine whether this behavior represents a new baseline.

We will continue monitoring closely, working with Google, and posting updates here as we learn more.

We remain actively engaged with Google Workspace Support regarding elevated 503 “Service Unavailable” responses across multiple Google APIs, including both Gmail and Calendar. These upstream errors continue to surface as 504 responses within the Nylas platform.

The case is still under review by Google’s Gmail API team. While no significant updates have been provided yet, our monitoring confirms that error volumes remain elevated above normal levels.

We will continue to closely track the situation and provide further updates as soon as new information becomes available.
Thank you for your continued patience and understanding.

We continue to actively engage with Google Workspace Support regarding elevated 503 “Service Unavailable” responses across multiple Google APIs, including both Gmail and Calendar. These upstream errors surface as 504 responses within the Nylas platform.

The case remains escalated to Google’s Gmail API team. While we are still awaiting their findings, our engineering team continues to closely monitor error volumes, which remain elevated above our normal baseline despite recent improvements.

We will provide further updates as soon as Google shares additional details.

Thank you for your continued patience and understanding.

We continue to actively engage with Google Workspace Support regarding elevated 503 “Service Unavailable” responses across multiple Google APIs, including both Gmail and Calendar. These upstream errors surface as 504 responses within the Nylas platform.

Google has escalated the case to their Gmail API team. While an update was initially expected by August 26th, our support partners have informed us that this has now been deferred to August 28th, 2025.

In the meantime, our engineering team continues to closely monitor error volumes, which remain elevated above our normal baseline. We will provide further updates as soon as Google shares additional findings.

Thank you for your continued patience and understanding.

We continue to actively engage with Google Workspace Support regarding elevated 503 “Service Unavailable” responses across multiple Google APIs, including both Gmail and Calendar. These upstream errors surface as 504 responses within the Nylas platform.

Google has escalated the case to their Gmail API team, and we are currently awaiting their findings. Our support partners have confirmed that an update from the Gmail API team is expected no later than August 26th, 2025.

In the meantime, our engineering team continues to closely monitor error volumes, which remain above our normal baseline despite recent improvements. We will provide another update as soon as Google shares additional details.

Thank you for your continued patience and understanding.

We remain actively engaged with Google Workspace Support regarding elevated 503 “Service Unavailable” responses across multiple Google APIs, including Gmail and Calendar. These upstream errors surface as 504 responses within the Nylas platform.

At this time, we have not yet received any additional updates from Google following their escalation to the Gmail API team. Our latest monitoring indicates that error volumes have increased compared to yesterday. While current levels remain below the peak volumes observed earlier in the incident, they are still well above our normal baseline.

Our engineering team continues to track the situation closely and will provide further updates as soon as new information becomes available.

Thank you for your continued patience and understanding.

We continue to actively engage with Google Workspace Support regarding elevated 503 “Service Unavailable” responses across multiple Google APIs, including both Gmail and Calendar. These upstream errors surface as 504 responses within the Nylas platform.

Google has escalated the case to their Gmail API team for deeper investigation. In the meantime, our own monitoring shows that error volumes have decreased significantly over the past few days. While this represents clear improvement, the error rate remains above our normal baseline.

Our engineering team is closely aligned with Google’s investigation and will continue to monitor the situation. We will provide further updates as soon as additional findings are shared.

Thank you for your continued patience and understanding.

We continue to actively engage with Google Workspace Support regarding elevated 503 “Service Unavailable” responses across multiple Google APIs, including both Gmail and Calendar. These upstream errors surface as 504 responses within the Nylas platform.

Google has confirmed that no issues were identified at the network level and has now escalated the case to their Gmail API team for deeper investigation.

Our engineering team remains closely aligned with theirs and will continue monitoring the situation. We will provide another update as soon as Google shares additional findings, expected within the next 24–48 hours.

Thank you for your continued patience and understanding.

We continue to actively engage with Google Workspace Support regarding elevated 503 “Service Unavailable” responses across multiple Google APIs, including both Gmail and Calendar. These upstream errors surface as 504 responses within the Nylas platform.

Google has confirmed that the issue originates on their side. Our engineering team is collaborating closely with theirs to support the ongoing investigation and resolution efforts.

We will continue to monitor closely and provide updates as soon as new information becomes available.

Thank you for your continued patience and understanding.

We continue to actively engage with Google Workspace Support regarding elevated 503 “Service Unavailable” responses across multiple Google APIs, including both Gmail and Calendar. These upstream errors surface as 504 responses within the Nylas platform.

At this time, there has been no improvement in error rate, and we have not yet received any indication of the root cause from Google. Our engineering team is continuing to exchange diagnostic data with theirs in an effort to accelerate resolution.

We will share additional updates as soon as new information becomes available.
Thank you for your continued patience and understanding.

We continue to actively monitor the elevated 503 “Service Unavailable” responses from the Google API, which surface as 504 errors in the Nylas platform. Our engineering team is working closely with Google Support to help identify and resolve the issue.

We have narrowed the impacted operations to the following endpoints:

• Message list
• Folder list
• Thread list
• Clean Conversation
• Draft list
• Event list
• Calendar free-busy
• Thread retrieve

This Google API issue primarily affects list operations, but also others that involve batch calls to Google. Other operations, including Send, are not currently impacted.

At this time, the scope and severity of impact remain unchanged. We will continue to provide updates as new information becomes available.

Thank you for your continued patience and understanding.

We are currently investigating an increase in 503 "Service Unavailable" responses from the Google API, which surface as 504 errors in the Nylas platform. This appears to be due to a temporary issue on Google’s side.

Our engineering team is actively monitoring the situation and has opened a support case with Google to obtain more details.

We will provide updates as soon as more information becomes available.

Thank you for your patience and understanding.