Well there are a lot of discussion on this topic,
but looks like that google enforce its security policy and now, if is it still possible, is hard to find a way to send and mail by the smtp protocol using google
my java application works properly, it is not a fact of code, i use it to send mail by outlook365 or hotmail
the point here is how to configure the properties to pass to the session
Session session = Session.getInstance(prop,auth)
and how to configure the google account to accept an smpt call
to be precise I'm using a google workspace account and not a standard#gmail account
regarding the properties should not be a big doubt, this are listed in several pages of google:
regarding the google account, look like there are 3 strategies:
https://support.google.com/a/answer/176600?hl=en
Option 1: Send email with SMTP relay:
after configured the routing form my domain this is the log received
mail.smtp.starttls.enable=true
mail.smtp.port=587
mail.smtp.auth=true
mail.smtp.host=smtp-relay.gmail.com
mail.smtp.ssl.protocols=TLSv1.2
mail.smtp.ssl.trust=smtp-relay.gmail.com --> in this way a consider valid their certificate
but go head...
DEBUG SMTP: protocolConnect login, host=smtp-relay.gmail.com, user=myuser#my.domain, password=<non-null>
DEBUG SMTP: Attempt to authenticate using mechanisms: LOGIN PLAIN DIGEST-MD5 NTLM XOAUTH2
DEBUG SMTP: Using mechanism LOGIN
DEBUG SMTP: AUTH LOGIN command trace suppressed
DEBUG SMTP: AUTH LOGIN failed
Caused by: 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
Option 2: Send email with the Gmail SMTP server
tested but this is no more possible, google removed in the 2022 the creation of app password
Option 3: Send email with the restricted Gmail SMTP server
not valid approach, you can send only mail in your organization
if sameone succed could be nice to hear
Apps passwords can be used to login to googles smtp server you need to have 2fa enabled on your google account in order to create an apps password.
Simply create an apps password and use it in place of your standard gmail password in your code.
Quick fix for SMTP username and password not accepted error
How to create a Apps Password for connecting to Google's SMTP server.
Another option would be to use XOauth2 and authorize a user to access their gmail account. This can be used if you cant enable 2fa on the account.
java.lang.RuntimeException: 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 v7-20020a4a8607000000b0041bdf977c6dsm58061ooh.31 - gsmtp
I am receiving this error when attempting to use javax.mail API to send emails over my GMail account. I attempted to check my settings to verify it allows less secure apps to use my GMail account but the Google website says
To help keep your account secure, from May 30, 2022, Google no longer supports the use of third-party apps or devices which ask you to sign in to your Google Account using only your username and password.
Does anyone know where I can find a current guide on how to build hooks to send/receive mail messages with my GMail account that gets around these new requirements?
Access the page with your Gmail/Google Account -> https://myaccount.google.com/security
In the Signing in to Google section, enable the 2-Step Verification
After enabling 2-Step Verification, return to Signing in to Google section
Click on App passwords
Select app as Mail and select device as Other - choose a name
Done! Copy the password and use it with the username account
Google is removing the access to gmail for "Less secure apps" starting the 1st of April (Gmail notification).
That probably means that we won't be able to use javax mail with a gmail account anymore. Are there any workarounds to this?
If you want to keep using imaplib then The easiest fix for the depiction of less secure apps is to switch to using an apps password.
Another option would be to swtich to using Xoauth2 javax mail appears to support that Oauth2
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);
How to create a Apps Password for connecting to Google's SMTP server.
I am getting this error when I try to send mail using the JavaMail API:
javax.mail.AuthenticationFailedException: 535-5.7.8 Username and Password not accepted
How can I fix this?
Sorry for coming late to Party.These could be the problem in your task if you are using Gmail Server.
Two Step Verification should be turned off.
Allow Less Secure App(should be turned on).
Please Check Your UserName and Password.
Check the code(which was my Problem), Above three You can change form google help center and by Yourself last one My Experience I can Share with You.
You need to Authenticate the Mail server before Communicating the message because it is Challenge Response System By which You are Communicating through the mail.I am sharing code snippets file you can refer not able to format my code by ctrl+K.
This worked for me:
Login to the gmail account you are sending mail from
Go to Manage your Google Account -> Security -> Less secure app access -> Turn on access (not recommended)
or
Access the URL:
https://www.google.com/settings/security/lesssecureapps
Turn "Allow less secure apps: OFF" to "Allow less secure apps: ON"
Update:
Google stopped supporting "Less Secure Apps" as of May 30th, 2022.
One of the alternatives to solve this problem is to use 2-Step Verification and generate app password:
Google Account -> Security -> 2-Step Verification -> Input password as asked -> Turn ON (you could use SMS to get Gmail code to activate 2-Step Verification)
Google Account -> Security -> App password -> Input password as asked -> Select the app and device... -> e.g. Other(Custom name) -> Input app name e.g. MyApp -> Generate
Copy a 16-character password
Use a 16-character password with Gmail username in your application
Google support link here.
Update since June 2022:
Google closed the "Less secure app access",
but opened another option called "App Passwords":
"When you use 2-Step Verification, some less secure apps or devices may be blocked from accessing your Google Account. App Passwords are a way to let the blocked app or device access your Google Account." (see docs).
Follow this answer to set up App Passwords
Hint: when using Jenkins Email Extension Plugin, emailext (which does not permit tokens like Google's App Passwords, still requiring logins), just use App Password as the password, and supply any string as login, e.g. your Gmail address login.
OLD ANSWER , not relevant anymore
Step 1: Log into your gmail account
Step 2: Click Settings
Step 3: Click the Accounts and Import Tab > Other Google Account Settings
Step 4: Click Security
Scroll to the bottom of the page Under Less secure app access, click on Turn on access
Step 5: Set Allow less secure apps to ON
First of all make sure that all properties should be defined as follows:-
mail.smtp.host=smtp.gmail.com,
mail.smtp.port=25,
mail.smtp.auth=true
mail.smtp.starttls.enable=true
Now,make sure that two step verification is off
Allow less secure app (ON) follow this link :-
https://myaccount.google.com/lesssecureapps
Also, check your username and password is correct or not.
It works for me, you must configure your Gmail account with the below steps:
In the security section:
You need to Change "Allow less secure apps: OFF" to "Allow less secure apps: ON"
Log on gmail account, in Account ->
click Security -> turn off 2-step verification and turn on "Less secure app access"
May be because of things above, hope help you
I have the same error but when I run the app from the terminal, it goes away. My email configuration is provided:
spring.mail.host=smtp.googlemail.com
spring.mail.username=weddingcard9999#gmail.com
spring.mail.password=Weddingcard.1
spring.mail.port=587
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.required=true
Follow the steps:
Disable antivirus
Allow Less Secure App On
Two Step Verification should be turned off.
1.Allow Less Secure App(should be turned on).
2.Check Gmail Username and Password..
public static void main(String[] args) {
final String username = "YourMailId";
final String password = "password";
Properties prop = new Properties();
prop.put("mail.smtp.host", "smtp.gmail.com");
prop.put("mail.smtp.port", "587");
prop.put("mail.smtp.auth", "true");
prop.put("mail.smtp.starttls.enable", "true"); //TLS
Session session = Session.getInstance(prop,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
try {
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress("Tarunsunny143#gmail.com"));
message.setRecipients(
Message.RecipientType.TO,
InternetAddress.parse("balachandralucky2#gmail.com, to_username_b#yahoo.com")
);
message.setSubject("Testing Gmail TLS");
message.setText("Dear Mail Crawler,"
+ "\n\n Please do not spam my email!");
Transport.send(message);
System.out.println("Done");
} catch (MessagingException e) {
e.printStackTrace();
}
}
}
Please turn on by clicking the toggle button inside the google security panel.
Then it will allow less secured app also.
Change the settings in Google like this:
You probably got this error because the username and password of the from mail id is not matching. Please recheck your password and mail-id (username). It could be a typo.
In some cases, Gmail prevents logging in through external applications or programs which are not authorised.
Also login to your gmail account to check if gmail has prevented logging in to your account via your Java Mail API program.
If nothing works, you could try some other SMTP server (like yahoo, yandex).
For me works change the property "mail.host" recomended for #Heisenberg.
At documentation says to use "smtp.gmail.com" but works only I use "smtp.googlemail.com".
PS: My Allow Less Secure App configuration was already On
I had this issue while setting up my Jenkins and I resolved it without turning off my Two-Step Verification on my email account security.
This error in my case was because Two-Step Verification was enabled in my email, so I needed to add an app password to generate a password that will give Jenkins access to my mail in order to send emails on my behalf.
STEP 1: Click settings on your email account, select the "Account and Import" tab and in the change account settings, select "Other Google accounts settings"
STEP 2: In the settings screen that opens, select "Security" on the left-hand side, and under Signing in to Google, click "App passwords"
STEP 3: In the add passwords section, click the select app, and select "Mail"
STEP 4: Still in the add passwords, click on the select device and choose "Other (Custome name)".
And in the field that will show, enter a custom name for the app you are creating a password for and click the generate button.
FINALLY: Copy the generated password and use it as your email password while setting up email sending on Jenkins or any other app you are setting it up on.
I just hope this helps someone, give me a vote if it does, Thanks...
Google stopped supporting "Less Secure Apps" a time ago.
I used 2-Step Verification to generate app password and it worked for me:
Go to your Google Account -> Security -> 2-Step Verification
Then follow the steps to turn on
After that, go to your Google Account -> Security -> App passwords -> Select the app and device... -> e.g. Other(Custom name) -> Input app name e.g. Linux Computer -> Generate
Then copy the 16 character password shown in the screen and place it in the your applications config:
spring.mail.host=smtp.gmail.com
spring.mail.port=587
spring.mail.username=myappemailhere#gmail.com
spring.mail.password=mygeneratedpasswordhere
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
A couple of answers have mentioned the Less Secure App setting which google stopped supporting in May 2022. Just wanted to clarify that the May 2022 date concerns gmail accounts. If you use Google Workspace for your email, you can still access and enable the Less Secure App Access setting then proceed to use smtp.gmail.com via port 465 or 587.
The help text accompanying the setting says "Important: This deadline does not apply to Google Workspace or Google Cloud Identity customers. The enforcement date for these customers will be announced on the Workspace blog at a later date".
I am using :
transport.connect(getHost(), getPort(), getUsername(), getPassword());
to send email, but it always gives me the following exception:
class com.sun.mail.smtp.SMTPAddressFailedException: 503 This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify that the domain or address is defined for this server.
But actually I have provided the username and password above, and the username and password is right as I tested in thunderbird, it can send email well.
So what's my problem ? Please point me the right direction. Thanks
When creating the javax.mail.Session, be sure the given properties contain:
props.put("mail.smtp.auth", "true");
http://www.oracle.com/technetwork/java/javamail/faq/index.html#smtpauth
I think that you need to talk to the administrators of the mail server to see what is going on. You might be using the wrong port for instance. Or there might be some local policy that you need to observe ...