diff --git a/pillar/role/mailserver.sls b/pillar/role/mailserver.sls
index e576c8c..e39804f 100644
--- a/pillar/role/mailserver.sls
+++ b/pillar/role/mailserver.sls
@@ -19,7 +19,7 @@ profile:
       strict_rfc821_envelopes: 'no'
       smtpd_client_restrictions: ''
       smtpd_helo_restrictions: ''
-      # smtpd_sender_restrictions: ''
+      smtpd_sender_restrictions: 'check_sender_access lmdb:/etc/postfix/manually-blocked-users,permit'
       smtpd_recipient_restrictions: >
         reject_unauth_destination,
         reject_non_fqdn_sender,
diff --git a/salt/profile/mailserver/files/manually-blocked-users b/salt/profile/mailserver/files/manually-blocked-users
new file mode 100644
index 0000000..661b8cd
--- /dev/null
+++ b/salt/profile/mailserver/files/manually-blocked-users
@@ -0,0 +1,12 @@
+corelearners360.com  reject Rejected as spam.
+catalinag@planable.pro    reject Rejected as spam.
+learningpro360.com   reject Rejected as spam.
+tonergarantiti@gmail.com  reject Rejected as spam.
+skillsnetworkgroup.com   reject Rejected as spam.
+upskillasia.com		reject Rejected as spam.
+learnmex.com		reject Rejected as spam.
+hyperionbmx.com		reject Rejected as spam.
+formacionintegral21.com	reject Rejected as spam.
+learningzoneasia.com	reject Rejected as spam.
+ilearnexperience.com	reject Rejected as spam.
+integracionprofesional21.com reject Rejected as spam.
diff --git a/salt/profile/mailserver/init.sls b/salt/profile/mailserver/init.sls
index 09b980d..b14c8a5 100644
--- a/salt/profile/mailserver/init.sls
+++ b/salt/profile/mailserver/init.sls
@@ -26,6 +26,7 @@
 
 {% for file in [
   'handling_special_recipients',
+  'manually-blocked-users',
   'no-internal-tls',
   'ratelimit',
   'transport',