Postfix (main.cf) configuration was not changed. If you need to make changes,
edit /etc/postfix/main.cf (and others) as needed. To view Postfix
configuration values, see postconf(1).
After modifying main.cf, be sure to run 'service postfix reload'.
Running newaliases
newaliases: warning: valid_hostname: misplaced delimiter: prabid-HCL-ME-Laptop..name
newaliases: fatal: file /etc/postfix/main.cf: parameter myhostname: bad parameter value: prabid-HCL-ME-Laptop..name
dpkg: error processing package postfix (--configure):
subprocess installed post-installation script returned error exit status 75
dpkg: dependency problems prevent configuration of mailutils:
mailutils depends on default-mta | mail-transport-agent; however:
Package default-mta is not installed.
Package postfix which provides default-mta is not configured yet.
Package mail-transport-agent is not installed.
Package postfix which provides mail-transport-agent is not configured yet.
dpkg: error processing package mailutils (--configure):
dependency problems - leaving unconfigured
Processing triggers for libc-bin (2.26-0ubuntu2) ...
No apport report written because the error message indicates it's a follow-up error from a previous failure.
Errors were encountered while processing:
postfix
mailutils
E: Sub-process /usr/bin/dpkg returned an error code (1)
Responder1
Esta postagem nos fóruns do Ubuntume ajudou a resolver o problema.
Eu removi o ponto extra no meu nome de host.