We are still seeing some rejections and delayed messages to these mail providers and are continuing to work to resolve these problems. We apologise for the ongoing nature of this issue and for the inconvenience caused.
Posted 3 months ago. Apr 13, 2017 - 14:20 BST
We are seeing that a number of rejections to BT and Yahoo are being caused by badly formed SPF records. If you are having issues sending to addresses with BT and Yahoo from our systems we recommend using the following SPF:-