need_ipv4
#
exim -bh 1.2.3.4
+helo test
mail from:<x@y>
quit
****
220 OK
****
exim -d -bhc 1.2.3.4
+helo test
mail from:<x@y>
quit
****
exim -d -bhc 1.2.3.4
+helo test
mail from:<x@y>
quit
****
exim -bhc 1.2.3.4
+helo test
mail from:<x@y>
quit
****
220 OK
****
exim -bhc 1.2.3.4
+helo test
mail from:<a@b>
quit
****
*eof
****
exim -bhc 1.2.3.4
+helo test
mail from:<p1@q>
quit
****