diff --git a/conf/postfix/main.cf b/conf/postfix/main.cf
index e30ca0874..2867a04c2 100644
--- a/conf/postfix/main.cf
+++ b/conf/postfix/main.cf
@@ -93,14 +93,14 @@ recipient_delimiter = +
 inet_interfaces = all
 
 #### Fit to the maximum message size to 25mb, more than allowed by GMail or Yahoo ####
-# /!\ This size is the size of the attachment in base64. 
+# /!\ This size is the size of the attachment in base64.
 # BASE64_SIZE_IN_BYTE = ORIGINAL_SIZE_IN_MEGABYTE * 1,37 *1024*1024 + 980
 # See https://serverfault.com/questions/346895/postfix-mail-size-counting
 message_size_limit = 35914708
 
 # Virtual Domains Control
 virtual_mailbox_domains = ldap:/etc/postfix/ldap-domains.cf
-virtual_mailbox_maps = ldap:/etc/postfix/ldap-accounts.cf
+virtual_mailbox_maps = ldap:/etc/postfix/ldap-accounts.cf,hash:/etc/postfix/app_senders_login_maps
 virtual_mailbox_base =
 virtual_alias_maps = ldap:/etc/postfix/ldap-aliases.cf,ldap:/etc/postfix/ldap-groups.cf
 virtual_alias_domains =