There are a few easy ways to tell when your letters get put in the mail.
The first way is to check your email. If you are using an account that has your email address associated with it, you'll get an email showing the date that we mailed your letters.
Another way to check for the mailing date is to login to your LetterStream account and check out the "Mailing Complete" portion of the "My Jobs" page. The date appearing in the Date column is the date that we mailed your letter. If you put your mouse/cursor over the date you can see more details about timing of your mailing.
If you are using someone else's LetterStream account to create your mailings, you might not be notified of the mailing. If doing this, remember to put your email address in the Additional Notification box in the last step of uploading and creating a job.
If you need your letters to be mailed on a specific date you can schedule your mailing for a future date or you can choose to expedite your job.