--- file_not_specified_in_diff	
+++ file_not_specified_in_diff	
@@ -6,1 +6,1 @@ 
-IUSE="apache2"
---
+IUSE="apache2 postfix sendmail qmail"
@@ -22,1 +22,10 @@ 
-MAILGID="280"
---
+
+if use postfix; then
+	MAILGID=nobody
+elif use sendmail; then
+	MAILGID=daemon
+elif use qmail; then
+	MAILGID=qmail
+else 
+	MAILGID="280"
+fi