Is there a work around google disabling "Less secure apps"?-CodePudding

So since the 31 of may google has disabled the option for "Less secure apps", so I have been using the Java mail API, and since the update i can no longer send emails using the Gmail smtp.

This is the error I'm getting:

javax.mail.AuthenticationFailedException: 535-5.7.8 Username and Password not accepted. Learn more at
535 5.7.8  https://support.google.com/mail/?p=BadCredentials n13-20020a5d400d000000b0020ff7246934sm4970874wrp.95 - gsmtp

I switched to an outlook mail and it seems to work fine, but i was wondering if there is a way to use a Gmail account

Less secure apps & your Google Account

CodePudding user response：

Now that you can no longer use login and password with Googles smtp server the only option really is to use XOauth2

I havent used Jakarta before but it appears to support it. You should look into OAuth2 Support

Properties props = new Properties();
props.put("mail.imap.ssl.enable", "true"); // required for Gmail
props.put("mail.imap.auth.mechanisms", "XOAUTH2");
Session session = Session.getInstance(props);
Store store = session.getStore("imap");
store.connect("imap.gmail.com", username, oauth2_access_token);

CodePudding user response：

You could try authentification via "App password".

On your Google account:

set "2-Step Verification" ON 2-Step Verification
create 16-character "App password"( How to create app password) -> result should be similar to: 16-character "App password"

Instead of Google account password use 16-character password

MailMessage mail = new MailMessage();
foreach (string receiver in DolociPrejemnike())
    mail.To.Add(receiver);
mail.From = new MailAddress("[email protected]", "No replay"); //pošiljatelj (vedno enak)
mail.Subject = SetSubject();
mail.Body = SetBody();
mail.IsBodyHtml = true;

SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.Port = 587;
smtp.UseDefaultCredentials = true;
smtp.Credentials = new System.Net.NetworkCredential("[email protected]", "xtqapucsmyvqmvxp"); // Enter seders User name and password  
smtp.EnableSsl = true;
smtp.Send(mail);