diff --git a/cloudron.js b/cloudron.js
index 3bc0e1b..bcc9dd1 100644
--- a/cloudron.js
+++ b/cloudron.js
@@ -276,7 +276,7 @@ Cloudron.prototype.checkSPF = function (callback) {
         if (error) return callback(error);
         if (records.length !== 1 || records[0].length !== 1) return callback(new Error('Got ' + JSON.stringify(records) + ' TXT records. Expecting 1 length 2d array'));
 
-        if (records[0][0].search(new RegExp('^v=spf1 ip4:' + that._box.ip + ' ~all$')) !== 0) return callback(new Error('Bad SPF record. ' + records[0][0]));
+        if (records[0][0].search(new RegExp('^v=spf1 a:' + that._box.domain + ' ~all$')) !== 0) return callback(new Error('Bad SPF record. ' + records[0][0]));
 
         callback(null, records);
     });