Client Configuration | Suggests the e-mail client configuration settings for your e-mail account. |
ActiveSync Verification | Verifies the configuraton of your Exchange ActiveSync settings. |
Autodiscovery Configuration Validation | Verifies autodiscovery settings for your domain. |
DNS Lookup DNS Record Check | This test determines whether other mail servers can locate your mail server. |
DNS Reverse Lookup DNS Check | This test determines whether other mail servers will identify your mail server as valid and therefore accept mail. |