I'm getting this message today, however, I'm trying to send through SquirelMail. This is the actual error message -
Requested action not taken: mailbox unavailable Server replied: 550 server27.tchmachines.com www.xxxxxx.cc) [xx.xx.xx.xx] is currently not permitted to relay through this server. Perhaps you have not logged into the pop/imap server in the last 30 minutes or do not have SMTP Authentication turned on in your email client.
Is this a setting I have wrong in cPanel, or do I need to open a ticket?