535-5 7 8 Username and Password not accepted

Question

I have a contact form and after submitting I am getting a Net  SMTPAuthenticationError 535-5 7 8 Username and Password not accepted  It s pointing to the create action in the contacts controller ContactMailer new contact  contact  deliver  I have restarted the server  I tried https   accounts google com DisplayUnlockCaptcha   I am in development   Contacts controller    def new        contact   Contact new     end      def create        contact   Contact new params  message         if  contact valid          ContactMailer new contact  contact  deliver         flash  notice     Message sent  Thank you for contacting us           redirect to root url       else         render  action   gt   new        end     end   end   Development rb     config action mailer raise delivery errors   true   config action mailer perform deliveries   true   config action mailer delivery method    smtp   config action mailer smtp settings         address                smtp gmail com       port                  587      domain                 gmail com       user name              username gmail com       password               password       authentication         plain       enable starttls auto  true       config action mailer default url options      host   gt   localhost 3000

User · Answer

I had the same problem  Now its working fine after doing below changes    https   www google com settings security lesssecureapps  You should change the  Access for less secure apps  to Enabled  it was enabled  I changed to disabled and than back to enabled   After a while I could send email

User · Answer

If you still cannot solve the problem after you turn on the less secure apps  The other possible reason which might cause this error is you are not using gmail account    -      user name    gt    example company com       It can not be used since it is not a gmail address         user name    gt    example gmail com       since it s a gmail address   Refer to here   Also  bear in mind that it might take some times to enable the less secure apps  I have to do it several times  before it works  every time I access the link it will shows that it is off  and wait for a while until it really work

User · Answer

UPDATE   Notice  This setting is not available for accounts with 2-Step Verification enabled  which mean you have to disable 2 factor authentication    If you disable the 2-Step Verification   Open your Gmail account in browser Navigate to Less secure app access Make Allow less secure apps   gt  On

User · Answer

Goto config initializers setup mail rb Check whether the configuration there matches the configuration written in the development rb file It should look like the following in both files   config action mailer smtp settings           address   gt  smtp gmabirdvision17 gmail comil com         port   gt  587        domain   gt   gmail com         user name   gt   PPPPPPPP gmail com         password   gt                    authentication   gt   plain         enable starttls auto   gt  true        openssl verify mode   gt   none             This will most certainly solve your problem

User · Answer

In my case removing 2 factor authentication solves my problem

User · Answer

First  You need to use a valid Gmail account with your credentials   Second  In my app I don t use TLS auto  try without this line   config action mailer smtp settings       address                smtp gmail com     port                  587    domain                 gmail com     user name              YOUR USERNAME gmail com     password               YOUR PASSWORD     authentication         plain      enable starttls auto  true         remove this option           UPDATE   See answer below for details  now you need to enable  less secure apps  on your Google Account  https   myaccount google com lesssecureapps pli 1

User · Answer

Time flies  the way I do without enabling less secured app is making a password for specific app Step one  enable 2FA  https   myaccount google com signinoptions two-step-verification enroll-welcome  Step two  create an app-specific password  https   myaccount google com apppasswords  After this  put the sixteen digits password to the settings and reload the app  enjoy    config action mailer smtp settings                 password   HERE      lt ---     authentication   plain       enable starttls auto  true

User · Answer

I did everything from visiting http   www google com accounts DisplayUnlockCaptcha to setting up 2-fa and creating an application password  The only thing that worked was logging into http   mail google com and sending an email from the server itself

[ruby-on-rails] 535-5.7.8 Username and Password not accepted

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