The problem occured when I had to send an email to myself for reporting purposes from server. It said like these : Insufficient disk space; try again later returntosender: cannot select queue for root Insufficient disk space; try again later returntosender: cannot select queue for postmaster putbody: write error: No space left on device Error writing control file qfoBV4nP7w025109: No space left on device Then I found that my /var [...]
