Thanks for your post and reaching out to the Community Forums, SimonBax,
Sorry to hear that you have been having email issues. Can you confirm if this is occurring directly from our webmail site or is this occurring with an app/email client? We also do have an online troubleshooter that migiht help with your email issues: https://www.virginmedia.com/help/services-support/email
But let us know if you are still in need of help with your mailbox.