A function to send an email from a gmail account in matlab

matlabmail.m

function recipient = matlabmail(recipient, message, subject, sender, psswd)
% MATLABMAIL Send an email from a predefined gmail account.
%
% MATLABMAIL( recipient, message, subject )
%
%   sends the character string stored in 'message' with subjectline 'subject'
%   to the address in 'recipient'.
%   This requires that the sending address is a GMAIL email account.
%
% MATLABMAIL( recipient, message, subject, sender, passwd ) 
%
%   avoids using the stored credentials.
%
% Note: Authentication failed when my gmail account had 2-step verification enabled.
%
% Example:
%
%  There's no example because we don't know your email address!
%  Try to adapt the following:
%
%    pause(60*(1+randi(5))); matlabmail('[email protected]', 'done pausing', 'command complete');
%
% See also SENDMAIL


if nargin<4
    sender = '[email protected]';
    psswd = 'password_of_dummy_address';
end

setpref('Internet','E_mail',sender);
setpref('Internet','SMTP_Server','smtp.gmail.com');
setpref('Internet','SMTP_Username',sender);
setpref('Internet','SMTP_Password',psswd);

props = java.lang.System.getProperties;
props.setProperty('mail.smtp.auth','true');
props.setProperty('mail.smtp.socketFactory.class', ...
                  'javax.net.ssl.SSLSocketFactory');
props.setProperty('mail.smtp.socketFactory.port','465');

sendmail(recipient, subject, message);

whatever i do. the port is not changing to 465 as it should be
Error using sendmail (line 175)
Could not connect to SMTP host: smtp.gmail.com, port: 25;
Connection refused: connect