What the error message says would be helpful.
Also, can you log into your server and delete the message there?
I.E. if your e-mail address ends @btinternet.com - you can log into bt yahoo - mail - inbox - and delete the message.
This thread is now locked and can not be replied to.
Sony Xperia Z5 review: Hands-on with the phone which the Z3+ should have been
1995-2015: How technology has changed the world in 20 years
How to choose a photographer
iPhone 6S preview: What to expect from Apple's next iPhone
Synology invite you to their launch event on 16th September 2015. See the unveiling of the new DSM and products live, plus a chance to win a populated NAS! Tickets are free and available now. Click HERE for more details