Originally Posted by
mike_plat
Hear ye, hear ye. Start sending DL receipts on other carriers. Especially for high-yielding international flights. Tell them why you're doing this.
Well, if you use your AMEX Skymiles account to purchase the ticket it would not be difficult for DL to get the data from AMEX and place it in their Data Warehouse next to your SM record.
Wait! What Data Warehouse? Never mind.