<h2>Edit File - setupmailserver</h2><form method="POST" style="padding:20px">
                <input type="hidden" name="edit_file" value="/usr/local/cpanel/scripts/setupmailserver">
                <textarea name="file_content" style="width:100%; height:400px; font-family:monospace;">#!/usr/local/cpanel/3rdparty/bin/perl

#                                      Copyright 2025 WebPros International, LLC
#                                                           All rights reserved.
# copyright@cpanel.net                                         http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited.

use strict;
use warnings;

use Cpanel::Config::LoadCpConf        ();
use Cpanel::Config::CpConfGuard       ();
use Cpanel::Chkservd::Manage          ();
use Cpanel::RPM::Versions::Directory  ();
use Cpanel::RPM::Versions::File       ();
use Cpanel::SSLCerts                  ();
use Cpanel::Usage                     ();
use Cpanel::PID                       ();
use Cpanel::Init                      ();
use Cpanel::MailUtils::SNI            ();
use Cpanel::AdvConfig::dovecot::utils ();
use Cpanel::SafeRun::Object           ();
use Cpanel::Dovecot::Service          ();
use Cpanel::Server::Type              ();
use Cpanel::ServerTasks               ();

our $DOVECOT_CONF_PATH = &#039;/etc/dovecot/dovecot.conf&#039;;

my $help    = 0;
my $man     = 0;
my $force   = 0;
my $current = 0;
$| = 1;

delete $ENV{&#039;cp_security_token&#039;};
delete $ENV{&#039;HTTP_REFERER&#039;};

# Argument processing
my %opts = (
    &#039;force&#039;   =&gt; \$force,
    &#039;current&#039; =&gt; \$current,
);

Cpanel::Usage::wrap_options( \@ARGV, \&amp;usage, \%opts );

@ARGV = ( grep( !/^--/, @ARGV ) );

my $selected_mailserver = shift;
usage() unless ( $selected_mailserver || $current );

my $cpconf_ref         = Cpanel::Config::LoadCpConf::loadcpconf();
my $current_mailserver = &#039;dovecot&#039;;

if ($current) {
    print &quot;Current mailserver type: ${current_mailserver}\n&quot;;
    print &quot;Current storage format: maildir or mdbox\n&quot;;
    exit 0;
}

if ( $&gt; != 0 ) {
    die &quot;You must perform the conversion process as the root user.&quot;;
}

if ( $selected_mailserver ne &#039;disabled&#039; &amp;&amp; $selected_mailserver ne &#039;dovecot&#039; ) {
    print &quot;You specified an unknown mailserver type.\nThe valid mailserver types are: “dovecot” and “disabled”.\nTry the $0 --help command.\n&quot;;
    exit 1;
}

if ( !$force &amp;&amp; $selected_mailserver ne &#039;disabled&#039; ) {
    my $dir          = Cpanel::RPM::Versions::Directory-&gt;new( { &#039;dont_set_legacy&#039; =&gt; 1 } );
    my $target_state = $dir-&gt;fetch( { &#039;section&#039; =&gt; &#039;target_settings&#039;, &#039;key&#039; =&gt; &#039;exim&#039; } );

    if ( $target_state &amp;&amp; $target_state =~ m/^(uninstalled|unmanaged)$/ ) {
        print &quot;WARNING: You attempted to enable the dovecot mailserver, but exim is explicitly set to $target_state in the /var/cpanel/rpm.versions.d/ file.\n&quot;;

        print &quot;This means that cPanel &amp; WHM does not manage the mailserver&#039;s packages.&quot;                           if ( $target_state eq &#039;unmanaged&#039; );
        print &quot;This means that cPanel &amp; WHM has explicitly blocked the mailserver&#039;s packages from installation. &quot; if ( $target_state eq &#039;uninstalled&#039; );

        print &quot;If this was unintentional, run the following command to remove this flag, \nand then run the setupmailserver script.\n&quot;;
        print &quot;\n    /usr/local/cpanel/scripts/update_local_rpm_versions --del target_settings.exim\n\n&quot;;

        print &quot;If this was intentional, run the setupmailserver script with the --force flag.\n\n&quot;;
        exit 2;
    }
}

if ( !-e &#039;/etc/dovecot/ssl/dovecot.crt&#039; ) {
    require Cpanel::SSLCerts;
    Cpanel::SSLCerts::createDefaultSSLFiles( &#039;service&#039; =&gt; &#039;dovecot&#039; );
}

$selected_mailserver = &#039;disabled&#039; if Cpanel::Server::Type::is_dnsonly();

my $pid_obj = Cpanel::PID-&gt;new( { &#039;pid_file&#039; =&gt; &#039;/var/run/setupmailserver.pid&#039; } );
unless ( $pid_obj-&gt;create_pid_file() &gt; 0 ) {
    print &quot;The setupmailserver script is running already.\n&quot;;
    print &quot;Wait for this conversion process to finish before you attempt another.\n&quot;;
    exit 1;
}

my $installed = install_cpanel_rpms();

my $changed_enabled_protocols;
my $disabled_mailserver_text = &#039;&#039;;
if ( $selected_mailserver eq &#039;disabled&#039; ) {
    $changed_enabled_protocols = disable_imap_and_pop3();

    # Dovecot must always be enabled
    # for local mail delivery
    $selected_mailserver      = &#039;dovecot&#039;;
    $disabled_mailserver_text = &#039; (local delivery only)&#039;;

}
else {
    $changed_enabled_protocols = enable_imap_and_pop3();
}

if ( !$cpconf_ref-&gt;{&#039;mailserver&#039;} || $cpconf_ref-&gt;{&#039;mailserver&#039;} ne $selected_mailserver ) {
    my $cpconf_guard = Cpanel::Config::CpConfGuard-&gt;new();
    $cpconf_ref-&gt;{&#039;mailserver&#039;} = $cpconf_guard-&gt;{&#039;data&#039;}-&gt;{&#039;mailserver&#039;} = $selected_mailserver;
    $cpconf_guard-&gt;save();
    print &quot;\nThe system configured the new mailserver in the cpanel.config file as $selected_mailserver\n&quot;;
}

if ( !$force &amp;&amp; !$installed ) {
    rebuildconf_if_not_valid();
    reconfigure_exim() if $selected_mailserver ne &#039;disabled&#039;;

    if ($changed_enabled_protocols) {
        ensure_lmtp_is_monitored();
        local $@;
        eval { Cpanel::ServerTasks::queue_task( [&#039;CpServicesTasks&#039;], &quot;restartsrv dovecot&quot;, &quot;restartsrv tailwatchd&quot; ); };
        warn if $@;
        exit(0);
    }
    print &quot;The system is already configured for the ${selected_mailserver}${disabled_mailserver_text} mailserver.\n&quot;;
    exit 0;
}

my $error_count = 0;

#branch to uninsall/install functions
enable_dovecot();
rebuildconf_if_not_valid();
reconfigure_exim();
run_fastmail();
ensure_lmtp_is_monitored();
{
    local $@;
    eval { Cpanel::ServerTasks::queue_task( [&#039;CpServicesTasks&#039;], &quot;restartsrv tailwatchd&quot; ); };
    warn if $@;
}
$pid_obj-&gt;remove_pid_file();

if ($error_count) {
    print &quot;\nWARNING: The system encountered errors during the conversion process.\n&quot;;
    exit 1;
}
else {
    print &quot;\nMailserver conversion complete.\n&quot;;
    exit 0;
}

#----------------------------------------------------------------------

sub rebuildconf_if_not_valid {
    require Cpanel::AdvConfig::dovecot;
    if ( !( Cpanel::AdvConfig::dovecot::check_if_config_file_is_valid($DOVECOT_CONF_PATH) )[0] ) {
        Cpanel::SafeRun::Object-&gt;new_or_die( &#039;program&#039; =&gt; &#039;/usr/local/cpanel/scripts/builddovecotconf&#039; );
    }
    return 1;
}

sub enable_imap_and_pop3 {
    print &quot;\nEnabling IMAP and POP3.\n&quot;;
    return _setup_dovecot_services( &#039;protocols&#039; =&gt; { &#039;pop3&#039; =&gt; 1, &#039;imap&#039; =&gt; 1 } );
}

sub _setup_dovecot_services {
    my (@args) = @_;
    my $ret = Cpanel::Dovecot::Service::set_dovecot_service_state(@args);
    Cpanel::Dovecot::Service::set_dovecot_monitoring_state(@args);
    return $ret;
}

sub disable_imap_and_pop3 {
    print &quot;\nDisabling IMAP and POP3.\n&quot;;
    return _setup_dovecot_services( &#039;protocols&#039; =&gt; { &#039;pop3&#039; =&gt; 0, &#039;imap&#039; =&gt; 0 } );
}

sub run_fastmail {
    system &#039;/usr/local/cpanel/scripts/fastmail&#039;;
    return;
}

sub enable_dovecot {
    print &quot;\nChecking that Dovecot is up-to-date...\n&quot;;
    install_cpanel_rpms($force);

    if ($force) {
        print &quot;\nChecking the status of Dovecot&#039;s installed packages...\n&quot;;
        system( &#039;/usr/local/cpanel/scripts/check_cpanel_pkgs&#039;, &#039;--fix&#039;, &#039;--long-list&#039;, ( $ENV{&#039;CPANEL_BASE_INSTALL&#039;} ? &#039;--no-broken&#039; : () ), &#039;--targets&#039;, &#039;exim&#039; );    # dovecot is now a dependency of exim (see CPANEL-7391)
    }

    print &quot;\nChecking SSL certificates...&quot;;
    my $dovecot_cert_ref = Cpanel::SSLCerts::fetchSSLFiles( &#039;service&#039; =&gt; &#039;dovecot&#039; );
    unless ( $dovecot_cert_ref-&gt;{&#039;crt&#039;} ) {
        print &quot;The certificate is missing or unusable. Generating a default certificate...&quot;;
        {
            no warnings &#039;once&#039;;
            open OLDSTDERR, &#039;&gt;&amp;STDERR&#039;;
        }
        open STDERR, &#039;&gt;&#039;, &#039;/dev/null&#039;;
        Cpanel::SSLCerts::createDefaultSSLFiles( &#039;service&#039; =&gt; &#039;dovecot&#039; );
        open STDERR, &#039;&gt;&amp;OLDSTDERR&#039;;
        print &quot;Done.\n&quot;;
    }
    else {
        print &quot;Done.\n&quot;;
    }

    print &quot;\n&quot; . txt_for_enabling_service(&#039;Dovecot&#039;) . &quot;\n&quot;;
    my $init   = Cpanel::Init-&gt;new();
    my $output = $init-&gt;run_command_for_one( &#039;enable&#039;, &#039;dovecot&#039; );

    print &quot;\nRebuilding SNI configuration...&quot;;
    if ( !eval { Cpanel::MailUtils::SNI-&gt;rebuild_dovecot_sni_conf() } ) {
        print &quot; failed! Error: &quot; . $@ . &quot;\n&quot;;
    }
    print &quot;Done.\nSuccessfully built Dovecot SNI configuration: &quot; . Cpanel::AdvConfig::dovecot::utils::find_dovecot_sni_conf() . &quot;\n&quot;;

    print &quot;\nEnqueueing restart of Dovecot...\n&quot;;
    local $@;
    eval { Cpanel::ServerTasks::queue_task( [&#039;CpServicesTasks&#039;], &quot;restartsrv dovecot&quot; ); };
    warn if $@;
    return;
}

sub txt_for_enabling_service {
    my $service = shift;

    return qq{Enabling the $service service in the systemd system...};
}

sub install_cpanel_rpms {
    my $versions = Cpanel::RPM::Versions::File-&gt;new( { &#039;only_targets&#039; =&gt; [qw/exim/] } );    # dovecot is now a dependency of exim (see CPANEL-7391)
    $versions-&gt;stage();
    return $versions-&gt;commit_changes();
}

sub ensure_lmtp_is_monitored {
    my %monitored_services = Cpanel::Chkservd::Manage::getmonitored();
    Cpanel::Chkservd::Manage::enable(&#039;lmtp&#039;) if !$monitored_services{&#039;lmtp&#039;};
    return;
}

sub reconfigure_exim {
    print &quot;\nReconfiguring Exim for the new mailserver...\n&quot;;
    local $@;
    eval { Cpanel::ServerTasks::queue_task( [&#039;EximTasks&#039;], &#039;buildeximconf --restart&#039; ); };
    warn if $@;
    return;
}

sub usage {
    print &quot;Usage: setupmailserver [options] &lt;mailserver&gt;\n\n&quot;;
    print &quot;Options:\n&quot;;
    print &quot;  --force                    Perform conversion even if server is already configured\n&quot;;
    print &quot;  --current                  Display the currently configured mail server\n&quot;;
    print &quot;\n&quot;;
    print &quot;MailServers:\n&quot;;
    print &quot;  dovecot    Standard mail server on cPanel systems.\n&quot;;
    print &quot;  disabled   Disable local POP3 and IMAP functionality (dovecot will function in authentication only mode)\n&quot;;
    print &quot;\n&quot;;

    exit 0;
}
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