"log_reject_target", "malware" and "spam"; the arguments are expanded
so could be handling tainted values.
+JH/04 Bug 2590: Fix -bi (newaliases). A previous code rearrangement had
+ broken the (no-op) support for this sendmail command. Restore it
+ to doing nothing, silently, and returning good status.
+
Exim version 4.94
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