[Mailman-Users] Operating system error

Hi Lists, Installed mailman on RH Linux 6.2 with apache & sendmail Installation was successful without any errors. Created a test list with users. Now If I post a message to the list as auser, my message is delivered to the list server. On the server if I type mailq command, the following

[Mailman-Users] Operating System error

Hi Lists,   Installed mailman on RH Linux 6.2 with apache & sendmail   Installation was successful without any errors.   Created a test list with users. Now If I post a message to the list as auser, my message is delivered to the list server.   On the server if I type mailq command, the fol