Hi there Akshayaa Kalyanavenkatesh
Thanks for using QandA platform
The ReportViewer control doesn’t support swapping out the built-in Export dropdown for a custom “Email to” option. If you need that , try to hide/disable the Export button and implement your own custom button in the app that renders the report and then emails it using SSRS server-side subscriptions or by programmatically exporting to PDF/Excel with the LocalReport.Render method and sending it via SMTP.
If security is the concern, you could also lock down which export formats are available (by editing RSReportServer.config) or wrap the exported file handling with your own logic. In short, you can’t directly repurpose Export as “Email to,” but you can disable it and provide your own safer alternative.
If this helps kindly accept the answer thanks much.