Rainer Traut wrote:
Hi,
sys: Centos 5.2 x86_64
Trying to switch from sendmail to postfix I did:
# yum remove sendmail
which resulted in erasing of: mdadm sendmail-doc sendmail sendmail-cf mutt fetchmail redhat-lsb
I did then:
yum -y install redhat-lsb.x86_64 postfix
and got this error:
Installing: postfix ######################### [1/2] postfix: fatal: file /etc/postfix/main.cf: parameter setgid_group: unknown group name: postdrop warning: group postdrop does not exist - using root warning: group postdrop does not exist - using root warning: group postdrop does not exist - using root warning: group postdrop does not exist - using root Installing: redhat-lsb ######################### [2/2]
I checked and indeed there is no group postdrop on the system. On an El5 system I see the group.
Thx Rainer
You don't need to remove sendmail, you can just use system-switch-mail to set postfix as the MTA.
There is documentation on setting up a basic postfix server (on CentOS 5) on the Wiki here: