remove user's emails
 

Hello, how can I remove from a user's mail box all email from Mail Delivery System ?

Thank you

Can only guess, since you don't give us ANY details, like version/distro of Linux, what mail system you're using, etc. Chances are there is a file/directory in /var/spool/mail (or a similar directory), that has the users name on it. Delete it.

If you can't find it, post complete details, and we can try to help.

I'm using Postfix on Centos

Ok...and did you read/try what I first suggested?? Could you find anything like /var/spool/mail? Perhaps /var/mail/<username>, or /var/spool/mail/<username>??? Did you try to do a find in the /var directory for things with "mail" in them, or a users name?

For that combo, see /var/spool/mail/<username>

Yes there is a file in /var/mail/<username> but deleting it would delete all user's mails, I only want to delete mail of that user from Mail Delivery System

Right...so AGAIN, you would delete the ONE FILE, that matches the name of your user. That would then remove that ONE USERS email, which is what you asked about.

No, I didn't wanto to mean to remove ALL user's email but only emails that came from Mail Delivery System

...which isn't exactly what you asked at first. Again, since you now know where the users emails are kept, and in which file, you would edit that file, and remove whatever you'd want to.