diff --git a/lib/adamantium/syndication/dayone.rb b/lib/adamantium/syndication/dayone.rb
index e071224..b8b4ba8 100644
--- a/lib/adamantium/syndication/dayone.rb
+++ b/lib/adamantium/syndication/dayone.rb
@@ -16,7 +16,7 @@ module Adamantium
         Mail.defaults do
           delivery_method :smtp, {
             address: "smtp.fastmail.com",
-            port: 465,
+            port: 587,
             authentication: "plain",
             tls: true,
             openssl_verify_mode: "peer"