Failed to authenticate on SMTP server error using gmail

Question

I m trying to set up email for my first laravel project  and was thrilled that there s a laracast for it   https   laracasts com lessons mailers  I ve followed the simple steps  chose gmail in mail php  x s added for anonymity      driver    gt  env  MAIL DRIVER    smtp     host    gt  env  MAIL HOST    smtp gmail com     port    gt  env  MAIL PORT   587    from    gt    address    gt   dianexxxxx gmail com    name    gt   Diane Kaplan     encryption    gt  env  MAIL ENCRYPTION    tls     username    gt   dianexxxxx gmail com    password    gt   xxxxx    sendmail    gt    usr sbin sendmail -bs    pretend    gt  false     env has  x s added for anonymity - the laracast doesn t have us use MAIL USERNAME and MAIL PASSWORD  but they re updated for good measure assuming I ll pull from there later    MAIL DRIVER smtp MAIL HOST mailtrap io MAIL PORT 2525 MAIL USERNAME dianexxxxx gmail com MAIL PASSWORD xxxxxx MAIL ENCRYPTION null   But in the first little moment of truth trying to send a mail  3 30 mark   I get an authentication error   Swift TransportException in AuthHandler php line 181  Failed to authenticate on SMTP server with username  dianexxxxx gmail com  using 3 possible authenticators  Based on a little stackoverflow reading  I tried turning on  access to less secure apps  in my gmail settings  but no change in the error   And the other posts about this issue had other factors that made a fancier problem than mine     Nothing jumps out at me from laravel log  below - any ideas      2015-11-26 12 25 55  local ERROR  exception  Swift TransportException  with message  Failed to authenticate on SMTP server with username  dianekaplan gmail com  using 3 possible authenticators  in  home vagrant Code Family-laravel vendor swiftmailer swiftmailer lib classes Swift Transport Esmtp AuthHandler php 181 Stack trace       0  home vagrant Code Family-laravel vendor swiftmailer swiftmailer lib classes Swift Transport EsmtpTransport php 307   Swift Transport Esmtp AuthHandler- gt afterEhlo Object Swift SmtpTransport        1  home vagrant Code Family-laravel vendor swiftmailer swiftmailer lib classes Swift Transport AbstractSmtpTransport php 118   Swift Transport EsmtpTransport- gt  doHeloCommand        2  home vagrant Code Family-laravel vendor swiftmailer swiftmailer lib classes Swift Mailer php 79   Swift Transport AbstractSmtpTransport- gt start        3  home vagrant Code Family-laravel vendor laravel framework src Illuminate Mail Mailer php 395   Swift Mailer- gt send Object Swift Message   Array       4  home vagrant Code Family-laravel vendor laravel framework src Illuminate Mail Mailer php 181   Illuminate Mail Mailer- gt sendSwiftMessage Object Swift Message        5  home vagrant Code Family-laravel vendor laravel framework src Illuminate Support Facades Facade php 220   Illuminate Mail Mailer- gt send  emails welcome   Array  Object Closure        6  home vagrant Code Family-laravel app Http routes php 59   Illuminate Support Facades Facade    callStatic  send   Array       7  home vagrant Code Family-laravel app Http routes php 59   Illuminate Support Facades Mail  send  emails welcome   Array  Object Closure        8  internal function   App Providers RouteServiceProvider- gt  closure         9  home vagrant Code Family-laravel vendor laravel framework src Illuminate Routing Route php 155   call user func array Object Closure   Array       10  home vagrant Code Family-laravel vendor laravel framework src Illuminate Routing Route php 130   Illuminate Routing Route- gt runCallable Object Illuminate Http Request        11  home vagrant Code Family-laravel vendor laravel framework src Illuminate Routing Router php 704   Illuminate Routing Route- gt run Object Illuminate Http Request        12  internal function   Illuminate Routing Router- gt Illuminate Routing  closure  Object Illuminate Http Request        13  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 139   call user func Object Closure   Object Illuminate Http Request        14  internal function   Illuminate Pipeline Pipeline- gt Illuminate Pipeline  closure  Object Illuminate Http Request        15  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 103   call user func Object Closure   Object Illuminate Http Request        16  home vagrant Code Family-laravel vendor laravel framework src Illuminate Routing Router php 706   Illuminate Pipeline Pipeline- gt then Object Closure        17  home vagrant Code Family-laravel vendor laravel framework src Illuminate Routing Router php 671   Illuminate Routing Router- gt runRouteWithinStack Object Illuminate Routing Route   Object Illuminate Http Request        18  home vagrant Code Family-laravel vendor laravel framework src Illuminate Routing Router php 631   Illuminate Routing Router- gt dispatchToRoute Object Illuminate Http Request        19  home vagrant Code Family-laravel vendor laravel framework src Illuminate Foundation Http Kernel php 236   Illuminate Routing Router- gt dispatch Object Illuminate Http Request        20  internal function   Illuminate Foundation Http Kernel- gt Illuminate Foundation Http  closure  Object Illuminate Http Request        21  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 139   call user func Object Closure   Object Illuminate Http Request        22  home vagrant Code Family-laravel vendor laravel framework src Illuminate Foundation Http Middleware VerifyCsrfToken php 50   Illuminate Pipeline Pipeline- gt Illuminate Pipeline  closure  Object Illuminate Http Request        23  internal function   Illuminate Foundation Http Middleware VerifyCsrfToken- gt handle Object Illuminate Http Request   Object Closure        24  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 124   call user func array Array  Array       25  home vagrant Code Family-laravel vendor laravel framework src Illuminate View Middleware ShareErrorsFromSession php 49   Illuminate Pipeline Pipeline- gt Illuminate Pipeline  closure  Object Illuminate Http Request        26  internal function   Illuminate View Middleware ShareErrorsFromSession- gt handle Object Illuminate Http Request   Object Closure        27  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 124   call user func array Array  Array       28  home vagrant Code Family-laravel vendor laravel framework src Illuminate Session Middleware StartSession php 62   Illuminate Pipeline Pipeline- gt Illuminate Pipeline  closure  Object Illuminate Http Request        29  internal function   Illuminate Session Middleware StartSession- gt handle Object Illuminate Http Request   Object Closure        30  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 124   call user func array Array  Array       31  home vagrant Code Family-laravel vendor laravel framework src Illuminate Cookie Middleware AddQueuedCookiesToResponse php 37   Illuminate Pipeline Pipeline- gt Illuminate Pipeline  closure  Object Illuminate Http Request        32  internal function   Illuminate Cookie Middleware AddQueuedCookiesToResponse- gt handle Object Illuminate Http Request   Object Closure        33  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 124   call user func array Array  Array       34  home vagrant Code Family-laravel vendor laravel framework src Illuminate Cookie Middleware EncryptCookies php 59   Illuminate Pipeline Pipeline- gt Illuminate Pipeline  closure  Object Illuminate Http Request        35  internal function   Illuminate Cookie Middleware EncryptCookies- gt handle Object Illuminate Http Request   Object Closure        36  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 124   call user func array Array  Array       37  home vagrant Code Family-laravel vendor laravel framework src Illuminate Foundation Http Middleware CheckForMaintenanceMode php 42   Illuminate Pipeline Pipeline- gt Illuminate Pipeline  closure  Object Illuminate Http Request        38  internal function   Illuminate Foundation Http Middleware CheckForMaintenanceMode- gt handle Object Illuminate Http Request   Object Closure        39  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 124   call user func array Array  Array       40  internal function   Illuminate Pipeline Pipeline- gt Illuminate Pipeline  closure  Object Illuminate Http Request        41  home vagrant Code Family-laravel vendor laravel framework src Illuminate Pipeline Pipeline php 103   call user func Object Closure   Object Illuminate Http Request        42  home vagrant Code Family-laravel vendor laravel framework src Illuminate Foundation Http Kernel php 122   Illuminate Pipeline Pipeline- gt then Object Closure        43  home vagrant Code Family-laravel vendor laravel framework src Illuminate Foundation Http Kernel php 87   Illuminate Foundation Http Kernel- gt sendRequestThroughRouter Object Illuminate Http Request        44  home vagrant Code Family-laravel public index php 54   Illuminate Foundation Http Kernel- gt handle Object Illuminate Http Request        45  main

User · Answer

Nothing wrong with your method  it s a G-mail security issue    Login g-mail account settings  Enable 2-step verification  Generate app-password  Use new-generated password in place of your real g-mail password    Don t forget to clear cache   php artisan config cache  php artisan config clear   MAIL DRIVER smtp MAIL HOST mailtrap io MAIL PORT 587 MAIL USERNAME yourgmailid gmail com MAIL PASSWORD generatedAppPassword MAIL ENCRYPTION tls

User · Answer

This is how  I solved this issue    Change the  env file as follow      Never forget to restart the server after you change the  env file

User · Answer

Did you turn on the  Allow less secure apps  on  go to this link  https   myaccount google com security connectedapps  Take a look at the Sign-in  amp  security -  Apps with account access menu   You must turn the option  Allow less secure apps  ON   If is still doesn t work try one of these    Go to https   accounts google com UnlockCaptcha   and click continue and unlock your account for access through other media sites  Use double quote in your password   your password    And change your  env file   MAIL DRIVER smtp MAIL HOST smtp gmail com MAIL PORT 587 MAIL USERNAME dianexxxxx gmail com MAIL PASSWORD xxxxxx MAIL ENCRYPTION tls   because the one s you have specified in the mail php will only be used if the value is not available in the  env file

User · Answer

Change the  env file as follow MAIL DRIVER smtp MAIL HOST smtp googlemail com MAIL PORT 587 MAIL USERNAME email address gmail com MAIL PASSWORD password MAIL ENCRYPTION tls  And the go to the gmail security section - gt Allow Less secure app access Then run php artisan config clear  Refresh the site

User · Answer

If you still get this error when sending email: "Failed to authenticate on SMTP server with username "[email protected]" using 3 possible authenticators"

You may try one of these methods:

Go to https://accounts.google.com/UnlockCaptcha, click continue and unlock your account for access through other media/sites.
Using a double quote password: "your password" <-- this one also solved my problem.

User · Answer

I had the same issue  but when I ran the following command  it was ok   php artisan config cache

User · Answer

If you still get this error when sending email: "Failed to authenticate on SMTP server with username "[email protected]" using 3 possible authenticators"

You may try one of these methods:

Go to https://accounts.google.com/UnlockCaptcha, click continue and unlock your account for access through other media/sites.
Using a double quote password: "your password" <-- this one also solved my problem.

User · Answer

I had the same problem and I ve already tried everything and nothing seemed to work until I just changed the  host  value in config php  to     host    gt  env  smtp mailtrap io      When I changed that it worked nicely  somehow it was using the default host   smtp mailtrap org  and ignoring the  env variable I was setting   After making some test I realize that if I placed  the env variable in this order it would worked as it shoulded   MAIL HOST smtp mailtrap io   MAIL DRIVER smtp   MAIL PORT 2525   MAIL USERNAME xxxx   MAIL PASSWORD xxx   MAIL ENCRYPTION null

[email] Failed to authenticate on SMTP server error using gmail

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