Hi @Neha Saraswat ,
First you need to admin permission within jira. This will allow you to see the cog on the top right of your screen.
If you don't have this permission you need to ask your system administrator to do it for you.
Once you have this permission you can navigate to the cog > system > troubleshooting and support > log analyzer > periodic scan.
Here you can choose the recipients to send the scan to.
Hope this helps!