error while installing postfix
Hello i’m trying to configure a mail server with dovecot and postfix
i’ve got the following error while installing postfix i have no clue on how to fix it i have searched for hours without getting success
thanks in advance!
root@mail:~# apt install postfix -y Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: procmail postfix-mysql postfix-pgsql postfix-ldap postfix-pcre sasl2-bin dovecot-common postfix-cdb mail-reader postfix-doc The following NEW packages will be installed: postfix 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 1,152 kB of archives. After this operation, 3,697 kB of additional disk space will be used. Get:1 http://nyc2.mirrors.digitalocean.com/ubuntu xenial-updates/main amd64 postfix amd64 3.1.0-3ubuntu0.3 [1,152 kB] Fetched 1,152 kB in 0s (1,875 kB/s) Preconfiguring packages ... Selecting previously unselected package postfix. (Reading database ... 132715 files and directories currently installed.) Preparing to unpack .../postfix_3.1.0-3ubuntu0.3_amd64.deb ... Unpacking postfix (3.1.0-3ubuntu0.3) ... Processing triggers for libc-bin (2.23-0ubuntu10) ... Processing triggers for ufw (0.35-0ubuntu2) ... Processing triggers for systemd (229-4ubuntu21.2) ... Processing triggers for ureadahead (0.100.0-19) ... Processing triggers for man-db (2.7.5-1) ... Setting up postfix (3.1.0-3ubuntu0.3) ... 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 (2.23-0ubuntu10) ... Processing triggers for systemd (229-4ubuntu21.2) ... Processing triggers for ureadahead (0.100.0-19) ... Processing triggers for ufw (0.35-0ubuntu2) ... Errors were encountered while processing: postfix E: Sub-process /usr/bin/dpkg returned an error code (1)
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