diff --git a/lib/tasks/mail.rake b/lib/tasks/mail.rake
index be5de3d..e1f0abf 100644
--- a/lib/tasks/mail.rake
+++ b/lib/tasks/mail.rake
@@ -101,10 +101,10 @@ namespace :mail do
 
   desc "Start STMP server for incoming email (options: SMTP_SERVER_PORT=2525, SMTP_SERVER_HOST=127.0.0.1)"
   task :smtp_server => :environment do
-    port = (ENV['SMTP_SERVER_PORT'] || 2525).to_i
+    port = ENV['SMTP_SERVER_PORT'] || '2525'
     host = ENV['SMTP_SERVER_HOST'] || '127.0.0.1'
     rake_say "Started SMTP server for incoming email on #{host}:#{port}."
-    server = ReplyEmailSmtpServer.new(port, host)
+    server = ReplyEmailSmtpServer.new(ports: port, hosts: host)
     server.start
     server.join
   end