There is a problem with some delivery of List emails to some email account (Now, mostly forwarded emails)
Due to Yahoo and AOL's settings on their outgoing emails (including related domains like aim.com), they are not very compatible with making submissions to the list. Mail from Yahoo and AOL will have the from line changed to be the lists email address, with your "name" included. It is suggested, strongly for people who post regularly, to change their email address to something besides Yahoo or AOL. Please see Changing my email address for details about how to change your subscription to a new email address.