We've raised the issue with our Post Masters and they've advised that our mail server is being blocked by Yahoo for no apparent reason. Please be advised that they are now processing the unblocking of our mail servers.
Can you please PM us the email client that you uses so that we can provide the proper email settings and for the Too many recipients error would not occur again?
I'm actually having this problem as well.
The list of recipients is 21 and the server is saying that it's too many recipients. ??
It says that it did not recognize two recipients -- one was an iinet.net.au address and the other was bigpond.net.au.
Is there an update for this issue?
I don't think there is a final solution from TPG yet. The annoying work-around that seems to work for me is to turn off the power to the NBN box and modem. On repowering, as I understand it, a new IP address is assigned and that IP address might be one that that is not blocked for multiple email recipients. What I don't understand is why the problem then recurs for this new IP address.
If I click 'Advanced POP settings' I get a dialog box that says 'TLS Settings' and a drop down menu with 'none' selected. A box for 'Allow insecure authentication' is not ticked.
This only appears to apply for incoming mail. I don't see anything for Advanced POP Settings in the Outgoing Server part of the Preferences dialog.