Why am I getting this error when I try to send an email using sendmail?

This is the error message I get:

Error using sendmail (line 171) Could not connect to SMTP host: [smtp server], port: 25; Permission denied: connect

I have tried allowing MATLAB through my firewall, changing the sending email address, and different combinations of the following code:

66 -  setpref('Internet','E_mail','[my email address]');
67 -  setpref('Internet','SMTP_Server','[smtp server');
68 -  setpref('Internet','SMTP_Username','[my email address]');
69 -  setpref('Internet','SMTP_Password','[my password]');
70 -  props = java.lang.System.getProperties;
71 -  props.setProperty('mail.smtp.auth','true');
72 -  props.setProperty('mail.smtp.socketFactory.class','javax.net.ssl.SSLSocketFactory');
73 -  props.setProperty('mail.smtp.socketFactory.port','465');
74 -  sendmail('[recipient address]','',{'attachment.png'});

What could be causing this error?

[Nicholas Sullivan]

I have also tried running it without lines 72 and 73

Answer 1

[Nicholas Sullivan]

I found a different approach:

http://www.mathworks.com/matlabcentral/answers/94446-can-i-send-e-mail-through-matlab-using-microsoft-outlook