To say "please proceed" in an email, you can use a simple and polite phrase. Here are a few options:
- "Please proceed with [the action or task]."
- "Feel free to proceed with [the action or task]."
- "You may proceed with [the action or task]."
- "Go ahead and proceed with [the action or task]."
Choose the one that fits the tone and formality of your email and the context in which you are using it. Always remember to maintain a courteous and professional tone in your email communication.