Hi Currently gmail don't allow use smtp server as earlier. Instead it wants to use more secure authentication. For that reason the old way is not working anymore with Splunk. Fortunately they have implemented 2-factor authentication and additional app password feature which you could use. Here is steps to do it https://support.google.com/accounts/answer/185833?sjid=13755993998155727325-EU#:~:text=to%2520your%2520data.-,sign%2520in%2520with%2520app%2520passwords,-Tip%253A%2520App%2520Passwords Check above instructions and ensure that you have 2-step verification on (probably this is as Google has enabled it for all) Create a new app password for your Splunk server Login to your local splunk instance Settings -> Server settings Email settings Mail host: smtp.gmail.com:587 Email security: Enable TLS Username: Your Gmail account where you have enabled 2 Step verification Password: App password for above Gmail account Allowed Domains: <add what is needed> Save Go to search GUI:   index=_internal | head 1 | sendemail to="<your test email recipient>" subject=test sendresults=true format=table sendcsv=false   r. Ismo   ... View more