MacJanitor, Mail and Warning

[ghyde]

When I run MacJanitor's daily routine, I get the following every day. Can someone tell me what it means? I especially concerned with the Warning . Thanks:

mail:
/etc/mail/sendmail.cf: line 81: fileclass: cannot open '/etc/mail/local-host-names': Group writable directory
Msmtp: Warning: first argument in [IPC] mailer must be TCP or FILE
Mesmtp: Warning: first argument in [IPC] mailer must be TCP or FILE
Msmtp8: Warning: first argument in [IPC] mailer must be TCP or FILE
Mdsmtp: Warning: first argument in [IPC] mailer must be TCP or FILE
Mrelay: Warning: first argument in [IPC] mailer must be TCP or FILE

 

[kcmac]

I get this all the time as well but have never noticed anything to be wrong.