https://community.hpe.com/t5/operating-system-linux/system-error/m-p/3210371#M10437 I found this error in /var/log/maillog , could suggest what is the reason of this error ? thx.<BR /><BR />NOQUEUE: SYSERR(root): hash map "Alias0": unsafe map file /etc/aliases.db: Permission denied<BR /><BR /> Fri, 05 Mar 2004 05:24:24 GMT peterchu 2004-03-05T05:24:24Z https://community.hpe.com/t5/operating-system-linux/system-error/m-p/3210371#M10437 I found this error in /var/log/maillog , could suggest what is the reason of this error ? thx.<BR /><BR />NOQUEUE: SYSERR(root): hash map "Alias0": unsafe map file /etc/aliases.db: Permission denied<BR /><BR /> Fri, 05 Mar 2004 05:24:24 GMT https://community.hpe.com/t5/operating-system-linux/system-error/m-p/3210371#M10437 peterchu 2004-03-05T05:24:24Z https://community.hpe.com/t5/operating-system-linux/system-error/m-p/3210372#M10438 maybe the permissions on that file are wrong. In my RH9 system they are:<BR /><BR /># ll /etc/aliases.db<BR />-rw-r----- 1 smmsp smmsp 12288 Mar 1 13:47 /etc/aliases.db<BR /><BR /><BR />the command<BR /># chmod 640 /etc/aliases.db<BR /><BR />will set the permission bits like these.<BR /><BR />hth,<BR />Claudio Fri, 05 Mar 2004 05:43:20 GMT https://community.hpe.com/t5/operating-system-linux/system-error/m-p/3210372#M10438 Claudio Cilloni 2004-03-05T05:43:20Z https://community.hpe.com/t5/operating-system-linux/system-error/m-p/3210373#M10439 Just run the following commmand an your error should go away.<BR /> <BR />"newaliases"<BR /> <BR />This will re-create the alaises.db file for you. Fri, 05 Mar 2004 06:42:47 GMT https://community.hpe.com/t5/operating-system-linux/system-error/m-p/3210373#M10439 Mark Grant 2004-03-05T06:42:47Z