+ if ( /(DKIM: d=.*) t=([0-9]*) x=([0-9]*) / )
+ {
+ my ($prefix, $t_diff) = ($1, $3 - $2);
+ s/DKIM: d=.* t=[0-9]* x=[0-9]* /${prefix} t=T x=T+${t_diff} /;
+ }
+
+ # port numbers
+ s/(?:\[[^\]]*\]:|port )\K$parm_port_d/PORT_D/;
+ s/(?:\[[^\]]*\]:|port )\K$parm_port_d2/PORT_D2/;
+ s/(?:\[[^\]]*\]:|port )\K$parm_port_d3/PORT_D3/;
+ s/(?:\[[^\]]*\]:|port )\K$parm_port_d4/PORT_D4/;
+ s/(?:\[[^\]]*\]:|port )\K$parm_port_s/PORT_S/;
+ s/(?:\[[^\]]*\]:|port )\K$parm_port_n/PORT_N/;
+ s/I=\[[^\]]*\]:\K\d+/ppppp/;
+