When addressing an envelope for an application letter, its important to include the correct information to ensure it gets delivered to the right person in a timely manner. Here are the steps to address an envelope for an application letter:

1. Put your return address in the upper left-hand corner of your envelope. Use the same name and address as you use on your cover letter stationery and resume.

2. Write out the name and title of the recipient on the first line of the envelope. If youre addressing an envelope for a professional letter, make sure you include the appropriate prefixes for your recipients name. Use "Ms." before a womans name and "Mr." before a mans name unless told otherwise.

3. Write out the full mailing address of the recipient in the center of the envelope. Add as much information as possible, such as the department name, suite number, and ZIP + 4 number if you can find it.

4. Place a stamp in the top right corner of the envelope. Be sure that you are using the correct type of stamp and the correct number of stamps for your letter to send.

Its important to use legible handwriting and avoid cursive when writing on an envelope, so the mail carrier can make sure it gets to the right place.