Connectivity to External Services The SMTP server requires a secure connection or the client was not authenticated Error Details Failed to send one or more Emails or create associated Log entries.Failed to Send Email.Failed to Execute via 'SMTP' Message provider.Error sending SMTP message. Error Code 'MustIssueStartTlsFirst'.The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM [SG2PR04CA0021.apcprd04.prod.outlook.com] Solution Under Global Settings, Messaging, Email or User Preferences, Messaging, Email check the 'Enable SSL' option. The Remote server returned an error: (502) Bad Gateway Error Details Failed to send one or more SMS messages or create associated Log entries.Failed to Send SMS Message.Failed to execute Web Service request.An unexpected Status response of 'Connection refused' (BadGateway) was received attempting to contact 'https://inteltech.com.au/secure-api/send.php'.Web Request failed.Unauthorised Access.The remote server returned an error: (502) Bad Gateway. Solution Your Proxy Server settings aren't configured correctly. Open Global Settings, General group, Internet page and ensure your Proxy Server details are correct. Print this Article