Reopened: Intermittent 504 Errors in Nylas Due to Upstream Google 502 Responses

Error rates have returned to normal levels and have remained stable, even during peak periods. However, we are keeping this incident open until we receive formal confirmation and additional details from Google.

Our team continues to monitor the situation closely and is in active communication with Google Workspace Support to ensure a permanent resolution.

Thank you for your continued patience and understanding. We will share further updates as soon as we have new information.

We have reopened this incident after observing a recurrence of intermittent 502 errors from Google, which surface as 504 Gateway Timeout responses in the Nylas API. While the error volume is lower than during the initial incident, it has again reached unacceptable levels during peak traffic hours.

These upstream errors are impacting message send operations for a subset of users. Most requests succeed on retry; however, we are now also receiving reports of some messages being sent despite a 502 response from Google, which may result in unintended duplicates when retries occur.

Our engineering team is actively monitoring the situation and has re-engaged Google Workspace Support. We are escalating through all available channels and providing additional diagnostic data at their request to help identify the root cause and prevent further disruptions.

We will continue to share updates as we learn more or receive further information from Google.

Thank you for your continued patience and understanding.