Create a gist now

Instantly share code, notes, and snippets.

What would you like to do?
A function to send an email from a gmail account in matlab
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('', 'done pausing', 'command complete');
% See also SENDMAIL
if nargin<4
sender = '';
psswd = 'password_of_dummy_address';
props = java.lang.System.getProperties;
props.setProperty('mail.smtp.socketFactory.class', ...
sendmail(recipient, subject, message);

It is giving following error:

Error using sendmail (line 171)
Authentication failed.

Error in matlabmail (line 42)
sendmail(recipient, subject, message);

Even though there is no 2-step verification.

sharif582 commented Mar 18, 2017

@ameer: You have to enable less secure apps by visiting

With Ubuntu running MATLAB Version: (R2016a)
Error using sendmail (line 171)
Exception reading response;
java.lang.IllegalArgumentException: Empty key

However, this works on my MacOS with R2012a proving it can work in principle (and I do have my google settings allowing less secure apps). Does one need to create some kind of encryption key?

TWRogers commented Aug 2, 2017


I had a similar problem and it was because I was using OpenJDK (Ubuntu 16.04, Matlab 2017a).

I had to use OpenJDK to avoid a display bug in Matlab's default JVM. But once I fixed that bug and went back to
the default JVM, the sendmail() worked correctly.

Would be nice to know how to fix sendmail for OpenJDK though

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment