What is the difference between Standard-Class and First-Class postage?

There are three notable differences: Deliverability Time, Returned Mail, and Cost.

There are three notable differences between Standard Class & First-Class postage.

1. Deliverability Time Windows:
   1. Standard Class mail can take anywhere from 5-20 days but typically hits mailboxes in 7-10 days.
   2. First Class mail starts to hit mailboxes in 1-5 business days from when your mail is brought to USPS. 
2. Undeliverable / Returned Mail:
   1. If your mail is undeliverable, First Class mail will be sent back to the return address on the mailpiece, while Standard Class mail will not. 
3. Cost Difference:
   1. Open Letter Marketing's First Class mail also costs ~18 cents more than our Standard Class mailers, but this can be well worth the extra cost due to receiving undeliverable mail and having a smaller delivery window.
   2. Click here to Skip Trace your undeliverable mail.