Misconfiguration Caused Email Delivery Problems
Sonic Status [Unofficial]
April 29, 2026
This morning the Systems Operations Center identified a DNS misconfiguration on a newly-deployed email backend server which had been leading to forwarding and aliasing delivery problems resulting in bounced email as well as the possibility that some forwarded messages were not sent. Due to the nature of the misconfiguration it is difficult to accurately assess the number of messages impacted,…
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Discussion in the ATmosphere