Exim enviroment fix for CentOS 7

Author: myvesta

install/rhel/7/exim/exim.conf

@@ -8,6 +8,8 @@
 #SPAM_SCORE = 50
 #CLAMD =  yes
 
+add_environment = <; PATH=/bin:/usr/bin
+keep_environment =
 disable_ipv6=true
 domainlist local_domains = dsearch;/etc/exim/domains/
 domainlist relay_to_domains = dsearch;/etc/exim/domains/