postfix error message

[rsteinmetz70112]

Upgrading one of my servers I got an error related to postfix init.d script. I removed postfix and reinstalled it and got thse errors


Setting up postfix (3.1.0-3ubuntu0.2) ...
insserv: script postfix: service mail-transport-agent already provided!
insserv: exiting now!
update-rc.d: error: insserv rejected the script header
dpkg: error processing package postfix (--configure):
subprocess installed post-installation script returned error exit status 1
Processing triggers for libc-bin (2.23-0ubuntu9) ...
Errors were encountered while processing:
postfix
E: Sub-process /usr/bin/dpkg returned an error code (1)


The postfix init script looks OK so I'm not sure what the error is telling me.

I do have courier installed but that's never cause any issues before.

[SeijiSensei]

Did you run "sudo apt-get update" before installing?

[rsteinmetz70112]

Did you run "sudo apt-get update" before installing?

I used the software update tool to upgrade all packages. I got the dpkg error during that. From there I removed and reinstalled postfix and this is what I get.