root@fourth:~# cpanm --verbose Mail::Webmail::Gmail
cpanm (App::cpanminus) 1.7044 on perl 5.032001 built for x86_64-linux-gnu-thread-multi
...
Checking if you have Crypt::SSLeay 0.51 ... No
...
==> Found dependencies: Crypt::SSLeay
Searching Crypt::SSLeay (0.51) on cpanmetadb ...
--> Working on Crypt::SSLeay
Fetching http://www.cpan.org/authors/id/N/NA/NANIS/Crypt-SSLeay-0.72.tar.gz ... OK
Unpacking Crypt-SSLeay-0.72.tar.gz
...
Configuring Crypt-SSLeay-0.72 ... 
    *** THIS IS NOT AN ERROR, JUST A MESSAGE FOR YOUR INFORMATION ***

    Do you really need Crypt::SSLeay?

    Starting with version 6.02 of LWP, https support was unbundled into
    LWP::Protocol::https. This module specifies as one of its prerequisites
    IO::Socket::SSL which is automatically used by LWP::UserAgent unless
    this preference is overridden separately. IO::Socket::SSL is a more
    complete implementation, and, crucially, it allows hostname
    verification. Crypt::SSLeay does not support this. At this point,
    Crypt::SSLeay is maintained to support existing software that already
    depends on it.

    However, it is possible that your software does not really depend on
    Crypt::SSLeay, only on the ability of LWP::UserAgent class to
    communicate with sites over SSL/TLS.

    If are using version LWP 6.02 or later, and therefore have installed
    LWP::Protocol::https and its dependencies, and do not explicitly use
    Net::SSL before loading LWP::UserAgent, or override the default socket
    class, you are probably using IO::Socket::SSL and do not really need
    Crypt::SSLeay.

    Before installing Crypt::SSLeay, you may want to try specifying a
    dependency on LWP::Protocol::https.

root@fourth:~# 

##</code><code>##

root@fourth:~# cd .ssh/
root@fourth:~/.ssh# ll
total 12
drwx------ 2 root root 4096 Jan  2 02:17 ./
drwx------ 9 root root 4096 Mar  5 04:47 ../
-rw------- 1 root root  419 Jan  2 02:17 authorized_keys
root@fourth:~/.ssh# 


##</code><code>##

#!/usr/bin/perl 

use v5.030;    # strictness implied
use warnings;

use Email::Simple::Markdown;
use Email::Sender::Simple qw(sendmail);
use Email::Sender::Transport::SMTP qw();
use Try::Tiny;
use Config::Tiny;

my $ini_path = qw( /home/wilma/7.values.ini );
my $sub_hash = "my_smtp";
my $Config   = Config::Tiny->new;

$Config = Config::Tiny->read( $ini_path, 'utf8' );

# -> is optional between brackets
my $host     = $Config->{$sub_hash}{'host'};
my $port     = $Config->{$sub_hash}{'port'};
my $username = $Config->{$sub_hash}{'sasl_username'};
my $pass     = $Config->{$sub_hash}{'sasl_password'};
my $ssl      = $Config->{$sub_hash}{'ssl'};

say "values are $host $port $username $ssl";

my $output  = "Come here, Mr. Watson";
my $message = Email::Simple::Markdown->create(
  header => [
    Subject => "Report",
    To      => 'tallharry84@gmail.com',
    From    => 'noreply@foo.com'
  ],
  body => $output
);

try {
  sendmail(
    $message,
    {
      from      => 'noreply@foo.com',
      transport => Email::Sender::Transport::SMTP->new(
        {
          host          => $host,
          port          => $port,
          sasl_username => $username,
          sasl_password => $pass,
          ssl           => $ssl,
        }
      )
    }
  );
}
catch {
  warn "sending failed: $_";
};

__END__

wilma@fourth:~$ 


##</code><code>##

wilma@fourth:~$ ./1.smtp.pl 
values are fourth 465 wilma starttls
sending failed: unable to establish SMTP connection to (fourth) port 465


##</code><code>##

wilma@fourth:~$ hostname
fourth


##</code><code>##

sudo apt-get install alpine postfix bsd-mailx
sudo vi /etc/postfix/main.cf
#=> correct "myhostname" if necessary
#=> if it doesn't exist, add the line "smtp_tls_security_level = may"
#=> if this option or the option "smtp_tls_CApath" doesn't exist,
#   add the line "smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt"
sudo dpkg-reconfigure postfix  # and configure as appropriate
echo "root: pi" | sudo tee -a /etc/aliases && echo "---" && cat /etc/aliases
sudo newaliases && sudo systemctl restart postfix
echo "This is a mailx test" | mailx -s "mailx test" root
alpine
# Configure "User Domain" and anything else as needed