Hi there, @manish1,
There isn't currently a way to directly email the P60s from the system.
However, you can download forms as PDF. After that, you can manually send these forms to your employees' email addresses outside the program.
I'm adding this helpful article to learn more about this form: P60s. You can also visit the gov.uk website for further details.
Please drop me a line below if there's anything else you need. Take care always.