BizKitHub
EML

EML_SEND_FAIL

E-mail delivery failed

An outbound e-mail was rejected by the upstream provider. Common causes: temporary recipient block, invalid address, or quota exhaustion.

What this code means

An outbound e-mail was rejected by the upstream provider. Common causes: temporary recipient block, invalid address, or quota exhaustion.

Where you will see it

  • In the subject line of technical-notification e-mails — for example [EML_SEND_FAIL] [emlHealthcheck] …
  • As a badge in the admin log viewer at /log, where you can filter and drill into individual entries.
  • In the core__system_log table, stored against the code id from core__system_log_code.