Improve email testing logic and reliability

Author: srenon

composer.json

@@ -21,7 +21,8 @@
         "php": "~7.4.0|~8.1.0|~8.2.0|~8.3.0",
         "magento/module-backend": "102.0.*",
         "magento/framework": "103.0.*",
-        "magepal/magento2-core":">=1.1.11"
+        "magepal/magento2-core":">=1.1.11",
+        "magento/module-email": "<=101.1.7"
     },
     "license": [
         "proprietary"