[pdurbin@server1 ~]$ netstat -ae | egrep 'Recv-Q|localhost:smtp'
Proto Recv-Q Send-Q Local Address               Foreign Address             State       User       Inode     
tcp        0      0 localhost:smtp              *:*                         LISTEN      root       12131      
tcp        0      0 localhost:smtp              *:*                         LISTEN      root       12136