We are currently seeing some customers have problems when sending emails, resulting in those messages bouncing back to them. If this happens to you, please wait for a while as you will need to resend the message once this issue is resolved.
20th November 2019, at 8:55AM
[resolved] Email is sending as normal now so we're marking this issue as resolved.
19th November 2019, at 5:07PM
[monitoring] The issues affecting sending of email have now been resolved. If you have received any bounce messages, please resend the relevant email and it will be delivered to your recipient.