I tried Email::Send::SMTP::Gmail from Ubuntu 16.04, and it worked after some tweaking. First I needed to change the layer from the default tls to ssl, then the port from the default 25 to 465. After that, I needed to change my gmail account settings to allow access for less secure apps. See this post http://stackoverflow.com/a/33244509/2173773 for more information. 
use strict;
use warnings;
use Email::Send::SMTP::Gmail;

my ($mail,$error) = Email::Send::SMTP::Gmail->new(
    -layer =>'ssl',
    -port  =>'465',
    -smtp  =>'smtp.gmail.com',
    -login =>'hakon.hagland@gmail.com',
    -pass  =>'?????'
);
 
die "session error: $error" if $mail ==-1;
$mail->send(
    -to         =>'hakon.hagland@gmail.com',
    -subject    =>'Hello!',
    -body       =>'Just testing it',
    -attachments=>'test.pdf'
);
$mail->bye;

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In reply to Re: Sending mails via gmail by hakonhagland
in thread Sending mails via gmail by morgon

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