diff --git a/debian/ngcp-panel.service b/debian/ngcp-panel.service
index 881351643a..ef60d414c1 100644
--- a/debian/ngcp-panel.service
+++ b/debian/ngcp-panel.service
@@ -45,6 +45,7 @@ ReadWritePaths=-/ngcp-data/spool/faxserver
 # NOTE: we need r/w access for sendmail usage with exim
 ReadWritePaths=-/var/spool/exim4/
 ReadWritePaths=-/var/log/exim4/
+ReadWritePaths=-/var/mail/
 
 # Service has own user namespace, only root, nobody, and the uid/gid under which the service is running are mapped
 # NOTE: we can't have our own user namespace, as we need proper permissions e.g. to /ngcp-data/spool/faxserver