I would like to express my sincere appreciation for the job offer and the trust you have placed in me. Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples.There are 7 acceptance letter samples you will see here. They can be used for different purposes. An acceptance letter confirms you are taking the job and shows your appreciation for the offer. I am pleased to accept your offer to join White Investments as a Systems Analyst. I am looking forward to working with you and your staff. A job acceptance letter lets you outline the details of the job so that you are clear about your role in the company prior to your joining. A sample letter offering a job contingent upon the results of a background check or other criteria. Telephone: 619-594-6578.