Emails being sent from SchemeServe are currently seeing a delay of around 5 hours on average to reach their destination. Many are being sent much quicker, and a few are taking a long time to arrive.
Our SMTP servers (the ones that actually send out emails) are under a huge load, in excess of 500% of their normal load.
We are making changes to increase the capacity and to identify the source of the extra traffic. There is no indication of anything malicious at this time, though we are remaining vigilant over the weekend.
We will be monitoring activity closely and will continue working to identify and resolve the issue.
In the meantime, please bear with us - and be assured emails are being delivered.