diff --git a/default.nix b/default.nix
index 7e2eb6c..499e0aa 100644
--- a/default.nix
+++ b/default.nix
@@ -143,12 +143,13 @@ in
             default = false;
             description = ''
               Specifies if the account should be a send-only account.
-              Emails sent to send-only accounts will be rejected with the
-              rejectMessage stating the reason.
+              Emails sent to send-only accounts will be rejected from
+              unauthorized senders with the sendOnlyRejectMessage
+              stating the reason.
             '';
           };
 
-          rejectMessage = mkOption {
+          sendOnlyRejectMessage = mkOption {
             type = types.str;
             default = "This account cannot receive emails.";
             description = ''
diff --git a/mail-server/postfix.nix b/mail-server/postfix.nix
index 00c62c5..dff0d60 100644
--- a/mail-server/postfix.nix
+++ b/mail-server/postfix.nix
@@ -52,7 +52,7 @@ let
 
   # denied_recipients_postfix :: [ String ]
   denied_recipients_postfix = (map
-    (acct: "${acct.name} REJECT ${acct.rejectMessage}")
+    (acct: "${acct.name} REJECT ${acct.sendOnlyRejectMessage}")
     (lib.filter (acct: acct.sendOnly) (lib.attrValues cfg.loginAccounts)));
   denied_recipients_file = builtins.toFile "denied_recipients" (lib.concatStringsSep "\n" denied_recipients_postfix);