I would also add that your @aol.com list member should include the list email address into their Contacts section in AOL as well.? I have an AOL email address, and I have not had any of the issues your list member is reporting.? I suspect it is due to her not having your list's email address in her Contacts section, as well as not managing her Spam folder correctly in AOL (i.e., not checking it regularly, and marking any legitimate emails as "NOT SPAM", which sends a message back to AOL to NOT black list those emails/domains.)? So, make sure she checks her Spam folder daily, and any groups.io emails that land in there need to be marked as "NOT SPAM", which will reinstate the to her Inbox.? VERY important step.? She does that enough, and AOL will get the message, and stop directing your list emails to her Spam folder :-)