Gmail interruption causing “Address not found” error when sending

Google suffered a massive one-hour outage yesterday morning. This afternoon, Gmail is experiencing some widespread “Address Not Found” problems that prevent certain emails from being delivered.

This problem mainly manifests itself as some messages are not delivered and users receive an “Address not found” error shortly (about 30 seconds) after being sent by the [email protected] mail delivery subsystem.

Your message was not delivered to [email protected] because the address could not be found or mail could not be received.

Google says a “significant subset of users” are affected and we have not been able to use Workspace accounts to reach personal Gmail addresses. However, the reverse exchange works, while emails to other people in our domain resolve.

Gmail suffered a similar “disturbance” last night involving the same “Address not found” / “550-5.1.1” problem. It was fixed in just over an hour.

The web and mobile clients are loaded, even if Google warns of “error messages, high latency and / or other unexpected behavior”. Other features, like opening messages and searching, work.

We are aware of an issue with Gmail that affects a significant subset of users. Affected users are able to sign in to Gmail, but are seeing error messages, high latency, and / or other unexpected behavior. We will provide an update by 12/15/20, 2:30 pm, specifying when we expect to resolve the issue. Please note that this resolution time is an estimate and may change.

Google acknowledged the problem at 1:29 PM PT and hopes to deliver an update within the hour.

Update 1: Google is still investigating the issue and will provide an update by 3pm

Update 2: “The Gmail service has already been restored for some users and we anticipate a solution for all users in the near future.”


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