'Laravel - Connection could not be established with host smtp.gmail.com [ #0]

I'm trying to send an email from Gmail using Laravel from localhost. I'm getting this error: Connection could not be established with host smtp.gmail.com [ #0]

I'm using ssl with port 465. I also tried 587 but it didn't work.

I also tried this but it didn't work. I found a lot of people suffering from the same problems, but the solutions I found didn't work.

laravel-4 gmail

Solution 1:^[1]

Editor's note: disabling SSL verification has security implications. Without verification of the authenticity of SSL/HTTPS connections, a malicious attacker can impersonate a trusted endpoint (such as GitHub or some other remote Git host), and you'll be vulnerable to a Man-in-the-Middle Attack.

Be sure you fully understand the security issues before using this as a solution.

In Laravel project directory, edit config/mail.php and add the following:

'stream' => [
        'ssl' => [
            'allow_self_signed' => true,
            'verify_peer' => false,
            'verify_peer_name' => false,
        ],
    ]

It worked for me.

Fyi, my SMTP settings are:

MAIL_DRIVER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=465
MAIL_USERNAME=[Full Gmail Address]
MAIL_PASSWORD=[Google App Password obtained after two step verification on Google Account Page]
MAIL_ENCRYPTION=ssl

Solution 2:^[2]

This one line change in .env file will make it work

MAIL_DRIVER=sendmail

If it also has no effect try to switch between the mail port

MAIL_PORT=587

MAIL_PORT=465

This will work only if you enable "Allow Less secure app access" under google account

Solution 3:^[3]

Editor's note: disabling SSL verification has security implications. Without verification of the authenticity of SSL/HTTPS connections, a malicious attacker can impersonate a trusted endpoint (such as GitHub or some other remote Git host), and you'll be vulnerable to a Man-in-the-Middle Attack.

Be sure you fully understand the security issues before using this as a solution.

I had the same error: Connection could not be established with host smtp.gmail.com [ #0] and followed the steps outlined here: https://github.com/swiftmailer/swiftmailer/issues/544.

Try adding the following lines to _establishSocketConnection() in Swift/Transport/StreamBuffer.php on line 263:

$options['ssl']['verify_peer'] = FALSE;
$options['ssl']['verify_peer_name'] = FALSE;

Note that this is not a perfect solution as it involves: a) Hacking core code which may be overwritten in a SwiftMailer update, and b) decreases the security of your app as you're no longer validating the connection. But as a temporary work-around it worked for me.

Solution 4:^[4]

In your .env file you will need to set the email address and password of your email account:

MAIL_DRIVER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
[email protected]
MAIL_PASSWORD=testpassword

and in mail.php

<?php

return [
    'driver' => env('MAIL_DRIVER', 'smtp'),
    'host' => env('MAIL_HOST', 'smtp.mailgun.org'),
    'port' => env('MAIL_PORT', 587),
    'from' => ['address' => '[email protected]', 'name' => 'Your Title'],
    'encryption' => 'tls',
    'username' => env('MAIL_USERNAME'),
    'password' => env('MAIL_PASSWORD'),
    'sendmail' => '/usr/sbin/sendmail -bs',
    'pretend' => false,
];

and clear the config cache with:

php artisan config:cache

Solution 5:^[5]

here's what is working with me

MAIL_MAILER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
MAIL_USERNAME=<your email>
MAIL_PASSWORD=<your app password>
MAIL_ENCRYPTION=tls

if you are two auth verification with your account , should be generate new app password and use into you env file. this is what working with me.

Solution 6:^[6]

in localhost you can set your MAIL_DRIVER=smtp but on real server like cpanel you must to set MAIL_DRIVER=sendmail and edit your config/mail.php 'default' => env('MAIL_MAILER', 'sendmail'), but its not good idea because after you send mail on google you get error on gmail like this :

Be careful with this message Gmail could not verify that it actually came from [email protected]. Avoid clicking links, downloading attachments, or replying with personal information.

Solution 7:^[7]

Have you tried changing the encryption to tls? I currently use a Gmail SMTP sever to send emails from my Laravel app. I use TLS and port 587

Solution 8:^[8]

Change mail driver in both .env and mail.php into MAIL_DRIVER=mailgun

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	miken32
Solution 2
Solution 3	miken32
Solution 4	Community
Solution 5	Fahd Allebdi
Solution 6
Solution 7	Chris Townsend
Solution 8	Rajeev Shrestha

'Laravel - Connection could not be established with host smtp.gmail.com [ #0]

Solution 1:[1]

Be sure you fully understand the security issues before using this as a solution.

Solution 2:[2]

Solution 3:[3]

Be sure you fully understand the security issues before using this as a solution.

Solution 4:[4]

Solution 5:[5]

Solution 6:[6]

Solution 7:[7]

Solution 8:[8]