Annoying swipe function on ipad email program

The Mail swipe gestures are intentional - providing the means to perform quick actions.

Available configuration options for this functionality can be found in iPad settings:

Settings > Mail > Swipe Options > Swipe Left | Swipe Right - tap to configure

The available configuration settings are the best mitigation that I can offer. As an observation, I don’t recall seeing previous complaint within the Support Community of these established UI gestures being issue.

While a full swipe to the left will delete an email (moving the mail to the Bin/Trash folder - from where it can be easily recovered), a less aggressive swipe reveals the configured options.

Apple do invite submission of constructive comments and feature requests via its Product Feedback portal. If you would like to request changes, this might be the most appropriate channel through which to make your view known to Apple:

Feedback - iPad - Apple