Hello & Welcome to JustAnswer.
Thank you for your question. I will do my best to assist you.
May i connect with you remotely to troubleshoot the issue directly? Thanks
Are you trying send email via the AOL webmail and what is the size of the file?
Can you try resetting your Cache and Cookies and then see if it goes through?
Which browser are you using?
That is the operating system.
That is the operating system, which browser is it? Internet Explorer, Google Chrome?
Please see steps here:https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings