MATLAB: Sendmail works when I run the app but not when another user uses it in a packaged app

app designerMATLABsendmail

Hello,
I made an app in app designer and part of the app asks the user to input their e-mail address and then the app sends them a "report" of sorts at the end of using the app when they push a "submit" button. The code I write is below.
The issue here is that when I push the submit button, it works and sends me the e-mail. When I sent it out to a friend to test drive, it gave them a "ding" and didn't send the e-mail. Is there anything not packaged up with the app when you create a standalone desktop app that might prevent that functionality?
            data={1:10} 
            out_email=input('email','type the recipient email');
            filename=['testing.xlsx'];
            filepath=[cd '\' filename];
            writecell(data,filepath);
            
            user = getenv('username');
            mail = 'myemail@gmail.com'; %my ghost GMail email address
            password = 'mypassword';  % ghost GMail password
            setpref('Internet','SMTP_Server','smtp.gmail.com');
            setpref('Internet','E_mail',mail);
            setpref('Internet','SMTP_Username',mail);
            setpref('Internet','SMTP_Password',password);
            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(out_email{:},'Results',{'testing'},filepath)
            delete(filepath) %I don't want the user to necesarrily have a copy of the file stored for them - only sent to the provided email
Looking forward to suggestions/thoughts.
Thanks

Best Answer

https://myaccount.google.com/lesssecureapps
They probably need to enable gmail "Less Secure Apps" in order for MATLAB to send to gmail .
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