Connect to Gmail with PHP & IMAP

Connect to Gmail with PHP & IMAP

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I have enabled OpenSSL and IMAP functions from my php.ini file and phpinfo() confirms it.

By using the code below i can connect to a Hotmail account but not to a Gmail account.(of course i change the $connect_to to point to Hotmail.)

$connect_to = '{}INBOX';
$connection = imap_open($connect_to, $user, $password)
  or die("Can't connect to '$connect_to': " . imap_last_error());

The returned error is

Warning: imap_open(): Couldn't open stream {}INBOX in /opt/lampp/htdocs/webmail_client_practise/index.php on line 6
Can't connect to '{}INBOX': Certificate failure for unable to get local issuer certificate: /C=US/O=GeoTrust Inc./CN=GeoTrust Global CA
Notice: Unknown: Certificate failure for unable to get local issuer certificate: /C=US/O=GeoTrust Inc./CN=GeoTrust Global CA (errflg=2) in Unknown on line 0

Unfortunately i cannot find a complete tutorial of how to use the IMAP functions.

Any ideas, solutions or suggestions will be helpful.


After searching for my problem on the Internet, i did not found a solution that solves my problem completely. Although if

1) I use the insecure $connect_to = '{}INBOX';

2)And allow gmail to be accessed by less secured apps,

solves my problem for now.

Please check this

Retrieve Your Gmail Emails Using PHP and IMAP, '</div>'; } echo $output; } /* close the connection */ imap_close($inbox);. With our individual username/password settings set, we connect to Gmail  Firstly, we’ll take a look at the PHP mailer library we’re going to use. You can take this library as an alternative of mail() function in PHP. After that, we’ll discuss the process. In case you want to send emails via Gmail, you can choose a simpler way that doesn’t require any technical coding – Connect with external SMTP Service Providers

If you get blocked, this can be because google sees a login from a new device.

Go to your google account and check and let them know the 'Unknown device is ok to use'.

Connect to Gmail with PHP & IMAP, UPDATE: After searching for my problem on the Internet, i did not found a solution that solves my problem completely. Although if. 1) I use the  Grabbing emails from your Gmail account using PHP is probably easier than you think. Armed with PHP and its IMAP extension, you can retrieve emails from your Gmail account in no time! Just for fun, I'll be using the MooTools Fx.Accordion plugin to display each email.

First check your date and time settings on your server are correct.

Alternatively try:

$connect_to = '{}INBOX',

This will stop it from trying to validate certificate.

I will probably get downvotes from people telling me this is bad practice as this leaves you open to Man in the Middle attacks. Which is true.

PHP Quickstart | Gmail API, Composer is the recommended way to install PHPMailer. Step 2: Writing the PHP Code to make an SMTP connection. Using your Gmail  PHP provides a mail() function which used to send an email. But there are limitations while using mail() method. You can’t send email from a local development server. Another drawback is, there is a high possibility of your email ended up into a Spam folder. To get out of these problems,

How to Send an Email via Gmail SMTP Server using PHP, PHP code as well. Lets discuss about Gmail with PHP. Now first you need to open the IMAP connection with Gmail. If you are using it from  Complete the steps described in the rest of this page to create a simple PHP command-line application that makes requests to the Gmail API. Prerequisites. To run this quickstart, you need the following prerequisites: PHP 5.4 or greater with the command-line interface (CLI) and JSON extension installed; The Composer dependency management tool

How to list emails from your Gmail account using PHP and IMAP, To connect to an SSL IMAP or POP3 server, add /ssl after the protocol One of the issues with gmail IMAP SSL authentication is related to Google's account  Reading emails from gmail using PHP & IMAP Recently i have worked on language translation project for that i need to read emails using PHP From the gamil inbox based on the email content i had created projects in the database…fortunately reading email from the gmail was easier than i think thanks to IMAP extension.

imap_open - Manual, Then click on Connected apps & sites. It will redirect you to the following window. Gmail SMTP enable settings. Here, you need to keep  Login with Google Account using PHP. Google OAuth API provides an easy and powerful way to integrate the login system on the website. Google Login API allows the user to sign into the website using their Google account without sign up on that website. Google login system definitely helps to increase the subscribers on your website.