As part of the ongoing reconfiguration of the relay and secondary mail servers on server NC020, we’ve implemented use of blocklists — the same blocklists that have been in use on server NC018 for several years. As expected, we’re already seeing a pay-off from this, with spam being rejected.
This implementation of the blocklists should not result in clients using the relay server being blocked, even if their IP address appears in the blocklists we’re using. However, if you use the relay server to send email and should you experience any problems trying to do so, please contact NinerNet support immediately.