[PVE-User] How i can delete my mail on the web ?

[XX0001XX YY0001YY]

Hello,
I am amazed at my emails on the web. How do I removed all traces of conversations that because it contains private information ( workplace) .
I thank you in advance. 

http://pve.proxmox.com/pipermail/pve-user/2015-November/009524.html 
http://pve.proxmox.com/pipermail/pve-user/2015-November/009536.html 
http://pve.proxmox.com/pipermail/pve-user/2015-November/009570.html 
http://pve.proxmox.com/pipermail/pve-user/2015-November/009534.html 
http://pve.proxmox.com/pipermail/pve-user/2015-January/008228.html