Hi @smakazmi15 so overall I’ve not been able to get it to work with the API connection process. However, through simple SMTP I realised I needed to generate an app specific password for Post SMTP. So now it is working and honestly, I don’t have the time to troubleshoot the API process. So lets just wrap this as closed. However, of course I don’t know if it really works or not or is fixed. Key for me is, mails are flowing. Thanks