domainlist relay_domains = test.ex
exim_path = EXIM_PATH
+keep_environment =
host_lookup_order = bydns
primary_hostname = myhost.test.ex
spool_directory = DIR/spool
# ----- Main settings -----
-smtp_receive_timeout = 2s
+OPT = 2s
+smtp_receive_timeout = OPT
receive_timeout = 2s