Connection could not be established with host mailtrap.io [php_network_getaddresses: getaddrinfo failed: No such host is known. #0]

Question

I am getting below error:

Connection could not be established with host smtp.gmail.com [php_network_getaddresses: getaddrinfo failed: No such host is known.

0]

My .env file looks like:

MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
MAIL_USERNAME=xxxxxxxxxxxxxx
MAIL_PASSWORD=xxxxxxxx
#MAIL_ENCRYPTION=null

My mail.php file inside config looks like:

/*
    |--------------------------------------------------------------------------
    | Mail Driver
    |--------------------------------------------------------------------------
    |
    | Laravel supports both SMTP and PHP's "mail" function as drivers for the
    | sending of e-mail. You may specify which one you're using throughout
    | your application here. By default, Laravel is setup for SMTP mail.
    |
    | Supported: "smtp", "mail", "sendmail", "mailgun", "mandrill",
    |            "ses", "sparkpost", "log"
    |
    */

    'driver' => env('MAIL_DRIVER', 'smtp'),

    /*
    |--------------------------------------------------------------------------
    | SMTP Host Address
    |--------------------------------------------------------------------------
    |
    | Here you may provide the host address of the SMTP server used by your
    | applications. A default option is provided that is compatible with
    | the Mailgun mail service which will provide reliable deliveries.
    |
    */

    'host' => env('MAIL_HOST', 'smtp.mailgun.org'),

    /*
    |--------------------------------------------------------------------------
    | SMTP Host Port
    |--------------------------------------------------------------------------
    |
    | This is the SMTP port used by your application to deliver e-mails to
    | users of the application. Like the host we have set this value to
    | stay compatible with the Mailgun e-mail application by default.
    |
    */

    'port' => env('MAIL_PORT', 587),

    /*
    |--------------------------------------------------------------------------
    | Global "From" Address
    |--------------------------------------------------------------------------
    |
    | You may wish for all e-mails sent by your application to be sent from
    | the same address. Here, you may specify a name and address that is
    | used globally for all e-mails that are sent by your application.
    |
    */

    'from' => ['address' => null, 'name' => null],

    /*
    |--------------------------------------------------------------------------
    | E-Mail Encryption Protocol
    |--------------------------------------------------------------------------
    |
    | Here you may specify the encryption protocol that should be used when
    | the application send e-mail messages. A sensible default using the
    | transport layer security protocol should provide great security.
    |
    */

    'encryption' => env('MAIL_ENCRYPTION', 'tls'),

    /*
    |--------------------------------------------------------------------------
    | SMTP Server Username
    |--------------------------------------------------------------------------
    |
    | If your SMTP server requires a username for authentication, you should
    | set it here. This will get used to authenticate with your server on
    | connection. You may also set the "password" value below this one.
    |
    */

    'username' => env('MAIL_USERNAME'),

    /*
    |--------------------------------------------------------------------------
    | SMTP Server Password
    |--------------------------------------------------------------------------
    |
    | Here you may set the password required by your SMTP server to send out
    | messages from your application. This will be given to the server on
    | connection so that the application will be able to send messages.
    |
    */

    'password' => env('MAIL_PASSWORD'),

    /*
    |--------------------------------------------------------------------------
    | Sendmail System Path
    |--------------------------------------------------------------------------
    |
    | When using the "sendmail" driver to send e-mails, we will need to know
    | the path to where Sendmail lives on this server. A default path has
    | been provided here, which will work well on most of your systems.
    |
    */

    'sendmail' => '/usr/sbin/sendmail -bs',

];

Surprisingly I am using this for last 6 months and it didn't error earlier but now when I uploaded my built again on staging I got this error.

Any suggestions would be highly appreciated.

Ruby

you did not provide mail credential in .env file all set null – Crescen

signup at https://mailtrap.io and get username/password as said here : code.tutsplus.com/tutorials/… – Crescen

@Rishi I have updated my question. I am now using different details. – Ruby

in your .env file add the following code and try again MAIL_DRIVER=smtp MAIL_ENCRYPTION=tls – Babbie

we need to contact the hosting or domain provider and register the domain first. We need to register an A record and MX record of mail.yourdomain.com. The hosting team will guide you through the process. Once domain is registered, you need to wait 4 to 8 hrs for it to reflect. – Ticket

'encryption' => env('MAIL_ENCRYPTION', 'tsl'), check Encytype tls,ssl or any other enctype – Diacetylmorphine

Answer 1

This problem occurs when some changes have been made to files, specifically in .env file

Clear cache using artisan command

php artisan cache:clear

Clear config

php artisan config:clear

Restart your server

sudo service apache2 restart

More: Try clearing browsers cache & cookies. Hope that works

Camp

Why didn't I think of that?! – Hardandfast

This worked for me with the same issue - I would be keen to understand why this works - this resolved my issue but I don't understand why. – Vaticinal

Actually it seems to be a temporary fix - issue is back for me. – Vaticinal

this is the best solution. It work perfectly fine – Tharp

Answer 2

I just had this same problem.

It looks like the server is not able to ping the destination address.

I did a quick restart of my dev server and everything is back to normal.

Hope that helps.

Teshatesla

I had this problem when im using the forgot password button (laravel breeze auth). can you help me? – Flameout

Answer 3

Use below code in .env file:

MAIL_ENCRYPTION= TLS

Try to clear cache , config cache , and restart apache2.

It works.

Trike

Thanks for the hint. It worked for me. Even though, restarting apache2 is not required. It seems Laravel 5.6.35 is smart enough to know the changes. – Godevil

It worked for me. I just cleared the cache. – Counterfactual

Answer 4

.env

MAIL_DRIVER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
[email protected]
MAIL_PASSWORD=yourmailIDpassword
MAIL_ENCRYPTION=tls

config/mail.php

?php

return [

/*
|--------------------------------------------------------------------------
| Mail Driver
|--------------------------------------------------------------------------
|
| Laravel supports both SMTP and PHP's "mail" function as drivers for the
| sending of e-mail. You may specify which one you're using throughout
| your application here. By default, Laravel is setup for SMTP mail.
|
| Supported: "smtp", "sendmail", "mailgun", "mandrill", "ses",
|            "sparkpost", "log", "array"
|
*/

'driver' => env('MAIL_DRIVER', 'smtp'),

/*
|--------------------------------------------------------------------------
| SMTP Host Address
|--------------------------------------------------------------------------
|
| Here you may provide the host address of the SMTP server used by your
| applications. A default option is provided that is compatible with
| the Mailgun mail service which will provide reliable deliveries.
|
*/

'host' => env('MAIL_HOST', 'smtp.mailgun.org'),

/*
|--------------------------------------------------------------------------
| SMTP Host Port
|--------------------------------------------------------------------------
|
| This is the SMTP port used by your application to deliver e-mails to
| users of the application. Like the host we have set this value to
| stay compatible with the Mailgun e-mail application by default.
|
*/

'port' => env('MAIL_PORT', 587),

/*
|--------------------------------------------------------------------------
| Global "From" Address
|--------------------------------------------------------------------------
|
| You may wish for all e-mails sent by your application to be sent from
| the same address. Here, you may specify a name and address that is
| used globally for all e-mails that are sent by your application.
|
*/

'from' => [
    'address' => env('MAIL_FROM_ADDRESS', '[email protected]'),
    'name' => env('MAIL_FROM_NAME', 'Example'),
],

/*
|--------------------------------------------------------------------------
| E-Mail Encryption Protocol
|--------------------------------------------------------------------------
|
| Here you may specify the encryption protocol that should be used when
| the application send e-mail messages. A sensible default using the
| transport layer security protocol should provide great security.
|
*/

'encryption' => env('MAIL_ENCRYPTION', 'tls'),

/*
|--------------------------------------------------------------------------
| SMTP Server Username
|--------------------------------------------------------------------------
|
| If your SMTP server requires a username for authentication, you should
| set it here. This will get used to authenticate with your server on
| connection. You may also set the "password" value below this one.
|
*/

'username' => env('MAIL_USERNAME'),

'password' => env('MAIL_PASSWORD'),

/*
|--------------------------------------------------------------------------
| Sendmail System Path
|--------------------------------------------------------------------------
|
| When using the "sendmail" driver to send e-mails, we will need to know
| the path to where Sendmail lives on this server. A default path has
| been provided here, which will work well on most of your systems.
|
*/

'sendmail' => '/usr/sbin/sendmail -bs',

/*
|--------------------------------------------------------------------------
| Markdown Mail Settings
|--------------------------------------------------------------------------
|
| If you are using Markdown based email rendering, you may configure your
| theme and component paths here, allowing you to customize the design
| of the emails. Or, you may simply stick with the Laravel defaults!
|
*/

'markdown' => [
    'theme' => 'default',

    'paths' => [
        resource_path('views/vendor/mail'),
    ],
],

/*
|--------------------------------------------------------------------------
| Log Channel
|--------------------------------------------------------------------------
|
| If you are using the "log" driver, you may specify the logging channel
| if you prefer to keep mail messages separate from other log entries
| for simpler reading. Otherwise, the default channel will be used.
|
*/

'log_channel' => env('MAIL_LOG_CHANNEL'),

];

app/Http/Controllers/yourcontroller.php

use App\Mail\sendMail;
use Mail;

public function fnmail($name,$password,$userid,$email)
{ 
  $data = array('name'=>$name, 'password' => $password, 'userid' => $userid);
  Mail::send('mail', $data, function($message) use ($name, $email) {
  $message->to($email, $name)
        ->subject('Subject');  //to redirect mail.blade.php page
  $message->from('[email protected]','DoNotReply');
  });
}

then create folder under app.. the folder name is Mail under this folder create sendMail.php file

sendMail.php

<?php

namespace App\Mail;
use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Contracts\Queue\ShouldQueue;

class sendMail extends Mailable
{
use Queueable, SerializesModels;

/**
 * Create a new message instance.
 *
 * @return void
 */
public function __construct()
{
    //
}

/**
 * Build the message.
 *
 * @return $this
 */
public function build()
{
    return $this->view('register'); //to redirect register page
}
}

then add resources/views/mail.blade.php

mail.blade.php

<!DOCTYPE html>
<html>
<head>
  <title>Mail Sending</title>
</head>
<body>
  <table align='center' style='height: 200px;width: 200px'>
   <tr><td colspan='2' bgcolor='skyblue' style='text-align: center;font-weight: 
  bold;size: 20px;'><label> Mail Check </label></td></tr>
   <tr bgcolor='#fff7e6'>
   <tr><td style='color: magenta;font-weight: bold;'><label><b>Your UserName:</b> 
 </label></td><td><b>{{$name}}</b></td></tr><br>
   <tr><td style='color: magenta;font-weight: bold;'><label><b>Your LoginID:</b> 
 </label></td><td><b>{{$userid}}</b></td></tr><br>
 <tr><td style='color: magenta;font-weight: bold;'><label><b>Your Password:</b> 
 </label></td><td><b>{{$password}}</b></td><br></tr>
</tr>
<tr><td colspan='2' align='center' bgcolor='orange'><a 
href='http://localhost/larashop/laravelProject/public/login'>
<button>Login</button></a></td></tr></table>
</body>
</html>

Homicide

Answer 5

After modify your settings you need to run: php artisan config:cache

Without those laravel will use old ones.

Gunnysack

Answer 6

The problem is actually a simple typo. In your .env file, change this:

MAIL_DRIVER=smtp MAIL_HOST=mailtrap.io

to this:

MAIL_DRIVER=smtp MAIL_HOST=smtp.mailtrap.io

I prepended the smtp. to the host

Headmistress

Answer 7

Edit and following this file: config / mail.php

'driver' => env('MAIL_DRIVER', 'smtp'),
'host' => env('MAIL_HOST', 'your mail host'),
'port' => env('MAIL_PORT', '465'),
'from' => [
        'address' => env('MAIL_FROM_ADDRESS', 'Your email address'),
        'name' => env('MAIL_FROM_NAME', 'Your email Name'),
'encryption' => env('MAIL_ENCRYPTION', 'ssl'),

Don't touch for these two lines

'username' => env('MAIL_USERNAME'),

'password' => env('MAIL_PASSWORD'),

Edit and following this file: /.env

MAIL_DRIVER=smtp
MAIL_HOST=your mail host
MAIL_PORT=465
MAIL_USERNAME=Your smtp email address
MAIL_PASSWORD=Your smtp password
MAIL_ENCRYPTION=ssl

MAIL_FROM_ADDRESS=Your email address
MAIL_FROM_NAME="Your email Name"

Use below artisan command.

Clear cache using artisan command

php artisan config:clear

Clear config

php artisan cache:clear

Restart your server

sudo service httpd restart

It will be works! Enjoy your coding

Mme

Answer 8

This is because of Enctype is not given proper. Check config/mail.php or .env

'encryption' => env('MAIL_ENCRYPTION', 'tsl'),

Encryption tsl,ssl or any other enctype. I also experienced with the same problem.

Diacetylmorphine

Answer 9

Check your internet connection first of all, because it also gives this exception.

Espalier

Answer 10

Generate a new key:

php artisan key:generate

In .env file:

MAIL_MAILER=smtp
MAIL_HOST=[yourhost.domain]
MAIL_PORT=587
MAIL_USERNAME=[[email protected]]
MAIL_PASSWORD=[yourpass]
MAIL_ENCRYPTION=tls

Clift

Answer 11

Edit .env file :

MAIL_HOST=smtp.gmail.com

Edit Config/mail.php file :

'host' => env('MAIL_HOST', 'smtp.mailgun.org'),

.env and mail.php should both correspond to each other .

Rossman

This is the "fallback selection" smtp.mailgun.org You are right in that the "MAIL_HOST" should be called identically, but it is already identical. – Calutron