Here are some professional ways to express "will do" in an email: I will take care of this. I will handle it accordingly. Consider it done. I am on it and will complete the task as requested. I will ensure that this is completed promptly. These phrases convey a sense of responsibility and professionalism, making them suitable for business communications. Subject: Re: Request for Task Completion Dear [Recipient's Name], Thank you for your request regarding [task/project]. I will take care of this and ensure that it is completed by the deadline. Best regards, [Your Name] [Your Position] [Company/Organization]Example Email to say will do professionally: