Can I upload a mailing list or do I need to load one address at a time?
We currently don't have a mailing list uploading tool on OnlineCertifiedMail. If you need to load hundreds of addresses for a large Certified Mail project, you might want to visit our parent website; www.LetterStream.com. The LetterStream website allows you to upload hundreds of address at a time and has numerous mailing options.
This website, OnlineCertifedMail.com is best utilized by customers who need to send less than 10 (or so) certified letters at a time.