diff --git a/modules/home/programs/thunderbird.nix b/modules/home/programs/thunderbird.nix
index 803cc82..cd9481e 100644
--- a/modules/home/programs/thunderbird.nix
+++ b/modules/home/programs/thunderbird.nix
@@ -66,7 +66,7 @@ in {
         realName = "Max Känner";
         imap = {
           host = "mxe96b.netcup.net";
-          port = 465;
+          port = 143;
           tls = {
             enable = true;
             useStartTls = false;
@@ -74,7 +74,7 @@ in {
         };
         smtp = {
           host = "mxe96b.netcup.net";
-          port = 143;
+          port = 465;
           tls = {
             enable = true;
             useStartTls = false;