As of yesterday Orange appear to be blocking access to all outgoing mail servers other than their own, which means Yobunny clients using smtp.yobunny.co.uk are not able to send email. Incoming email is not affected.
The only solution at this time is to change the smtp server name to smtp.orangehome.co.uk and the port to 25, enable pop before smtp authentication, and this should allow your email to be sent.
Previously this would not work as Orange servers were blocking anyone using a non-Orange email address from connecting to their smtp servers and blocking all non-Orange smtp traffic on port 25.
Yobunny customers needing help changing the smtp server details please contact us by phone or email.
