How to unsubscribe?

HI, I tried unsubscribig from this list as per directions given on SUSE site. This is the mail header I get in all mails from the list list-unsubscribe: mailto:suse-linux-e-unsubscribe-kvelhal=gmail.com@suse.com I tried sending mails to this address and also to suse-linux-e-unsubscribe@suse.com. Tried with empty mails, mails with Unsubscribe keyword in Subject/Body I have been doing this exercise over last week but not successful till now. I want to unsubscribe from 3-4 SUSE mailing lists for some time. can anybody tell me how to unsubscribe from the SUSE lists -Kshitij