View the original community article here
Last tested: Sep 12, 2019
Problem
Users will sometimes see the email address errorsfallback@looker.com in their SMTP logs; this is our error server where emails reporting exceptions will fall back to if their custom SMTP settings block our access to sending emails to Sentry.
Solution
The best way to change this behavior is to allowlist traffic to errorsentry.looker.com, but if that's not possible you can also change which email address to send exceptions to with the --error-emails-to=<s> startup flag.
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