We've been told that the latest version(s?) of AOL by default require users to specify acceptable senders of email, and all emails not from those senders are shunted aside into a spam folder - or something like that. Not being an AOHell user, I'm not certain of the details. However, this system would explain why we have been having significant problems communicating with people with AOL email addresses lately.
If you use our internet store and are an AOL user, PLEASE be sure to add the entire airgun.com domain to your list of permitted email addresses. You might do this by adding *@airgun.com to the list if AOHell uses the common format.
You might also want to add ups.com and fedex.com if you want to have a better chance of getting your tracking numbers.