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imap_open

(PHP 4, PHP 5, PHP 7)

imap_openОткрывает поток IMAP к почтовому ящику

Описание

imap_open ( string $mailbox , string $username , string $password [, int $options = 0 [, int $n_retries = 0 [, array $params = array() ]]] ) : resource

Открывает поток IMAP к mailbox.

Данная функция также может использоваться для открытия потока к серверам POP3 и NNTP, но часть функций и особенностей будет работать только с серверами IMAP.

Список параметров

mailbox

Имя почтового ящика состоит из сервера и пути к почтовому ящику на нем. Специальное имя INBOX используется для почтового ящика текущего пользователя. Имена почтовых ящиков, содержащих интернациональные символы кроме входящих в печатное пространство ASCII, должны быть закодированы с помощью imap_utf7_encode().

Внимание

Если imap.enable_insecure_rsh не отключен, то передача в этот параметр не проверенных данных не безопасна.

Серверная часть, заключенная в фигурные скобки '{' и '}', состоит из имени или IP-адреса сервера, опционального порта (предваренного двоеточием) и опциональных спецификаций протокола (предваренных слешом '/').

Серверная часть является обязательной во всех параметрах почтового ящика.

Все имена, начинающиеся с { являются удаленными именами и имеют такой синтаксис "{" remote_system_name [":" port] [flags] "}" [mailbox_name] где:

  • remote_system_name - полное доменное имя сервера, либо IP-адрес в квадратных скобках.
  • port - необязательный параметр. Определяет порт сервера
  • flags - опциональные флаги, смотри таблицу ниже
  • mailbox_name - имя почтового ящика. По умолчанию INBOX

Опциональные флаги
Флаг Описание
/service=service сервис доступа к почтовому ящику. По умолчанию "imap"
/user=user имя пользователя для входа на сервер
/authuser=user удаленный пользователь для аутентификации; если указано, то это будет тот пользователь, чей пароль используется (например administrator)
/anonymous удаленный доступ под анонимным пользователем
/debug записывать телеметрию протокола в специальный лог-файл приложения
/secure не передавать пароль по сети в виде нешифрованного текста
/imap, /imap2, /imap2bis, /imap4, /imap4rev1 эквивалентно /service=imap
/pop3 эквивалентно /service=pop3
/nntp эквивалентно /service=nntp
/norsh не использовать rsh или ssh для установки преавторизованной сессии IMAP
/ssl использовать SSL для шифрования сессии
/validate-cert проверять сертификаты серверов TLS/SSL (поведение по умолчанию)
/novalidate-cert не проверять сертификаты от серверов TLS/SSL. полезно для серверов с самоподписанным сертификатом
/tls принудительно использовать start-TLS для шифрования сессии и отвергать соединения с серверами его не поддерживающими
/notls не применять start-TLS для шифрования сессии, даже если сервер его поддерживает
/readonly запрос открытия в режиме "только чтение" (только IMAP; игнорируется для NNTP и выдает ошибку для SMTP и POP3)

username

Имя пользователя

password

Пароль пользователя username

options

options - битовая маска из одной или нескольких констант:

  • OP_READONLY - открыть почтовый ящик только для чтения
  • OP_ANONYMOUS - не использовать и не обновлять .newsrc для новостей (только NNTP)
  • OP_HALFOPEN - открыть соединение, но не подключаться к почтовому ящику для имен IMAP и NNTP.
  • CL_EXPUNGE - автоматически удалять все помеченные для удаления сообщения при закрытии почтового ящика (смотрите imap_delete() и imap_expunge())
  • OP_DEBUG - договоренности по протоколу отладки
  • OP_SHORTCACHE - короткое кеширование (только elt)
  • OP_SILENT - не передавать события (внутреннее использование)
  • OP_PROTOTYPE - вернуть прототип драйвера
  • OP_SECURE - не производить безопасную аутентификацию

n_retries

Максимальное количество попыток соединения

params

Параметры для соединения. Для установки одного или нескольких параметров соединения можно использоватиь следующие (строки) ключи:

  • DISABLE_AUTHENTICATOR - запрещает свойства аутентификации

Возвращаемые значения

В случае успеха возвращает поток IMAP, а в случае неудачи FALSE.

Список изменений

Версия Описание
5.3.2 Добавлен параметр params
5.2.0 Добавлен параметр n_retries

Примеры

Пример #1 Различные способы использования imap_open()

<?php
// Для подключения к серверу IMAP, работающему на порту 143 на локальной машине, сделать следующее:
$mbox imap_open("{localhost:143}INBOX""user_id""password");

// Для подключения к серверу POP3, работающему на порту 110 на локальной машине, использовать:
$mbox imap_open ("{localhost:110/pop3}INBOX""user_id""password");

// Для подключения к серверу SSL IMAP или POP3, добавить /ssl после протокола
// specification:
$mbox imap_open ("{localhost:993/imap/ssl}INBOX""user_id""password");

// Для подключения к серверу SSL IMAP или POP3 с самоподписанным сертификатом, 
// добавить /ssl/novalidate-cert после спецификации протокола:
$mbox imap_open ("{localhost:995/pop3/ssl/novalidate-cert}""user_id""password");

// Для подключения к серверу NNTP, работающему на порту 119 на локальной машине, использовать:
$nntp imap_open ("{localhost:119/nntp}comp.test""""");
// Для подключения к удаленному серверу, заменить "localhost" на имя или 
// IP-адрес сервера, к которому вы хотите подключиться.
?>

Пример #2 Пример использования imap_open()

<?php
$mbox 
imap_open("{imap.example.org:143}""username""password");

echo 
"<h1>Почтовые ящики</h1>\n";
$folders imap_listmailbox($mbox"{imap.example.org:143}""*");

if (
$folders == false) {
    echo 
"Неудачный вызов<br />\n";
} else {
    foreach (
$folders as $val) {
        echo 
$val "<br />\n";
    }
}

echo 
"<h1>Заголовки в INBOX</h1>\n";
$headers imap_headers($mbox);

if (
$headers == false) {
    echo 
"Неудачный вызов<br />\n";
} else {
    foreach (
$headers as $val) {
        echo 
$val "<br />\n";
    }
}

imap_close($mbox);
?>

Смотрите также

add a note add a note

User Contributed Notes 43 notes

up
3
me at achronos dot ca
5 years ago
Do not bother using "/debug" flag in $mailbox or OP_DEBUG in $options. They do not do anything.

When you set either one, the underlying IMAP c-client library will gather protocol debugging data and pass it back to PHP.
However, the debug handler defined by PHP is an empty function, it doesn't do anything.

So unless you're using a customized version of the IMAP extension that does something with that handler (mm_dlog), there is no point using "/debug" or OP_DEBUG.
up
6
Amit
13 years ago
None of the above comments explain the configuration issues on Apache/Windows combination. I thought it might be helpful to list my findings here so that Windows people's time is saved.

There is a bug in Windows php_imap.dll that prevents it from connecting it to the SSL IMAP/POP3 server.

http://bugs.php.net/bug.php?id=36496&edit=1
up
12
guilherme dot geronimo at gmail dot com
8 years ago
Using:
<?php
imap_open
( "{server.example.com:143}INBOX" , 'login' , 'password' );
?>

Got this error:
"Couldn't open stream {server.example.com:143}INBOX"

Solved by adding the flag "novalidate-cert":
<?php
imap_open
( "{server.example.com:143/novalidate-cert}INBOX" , 'login' , 'password' );
?>

=D
up
7
jeff at newscloud dot com
5 years ago
One of the issues with gmail IMAP SSL authentication is related to Google's account security.

Once you get the login error once, sign out of all your google accounts. Then, visit this link:
http://www.google.com/accounts/DisplayUnlockCaptcha

Log in with the account you're attempting to access via imap.

Follow the steps and you'll then be able to login in to gmail with php imap.

It's visually shown here:
http://jeffreifman.com/filtered-open-source-imap-mail-filtering-software-for-php/configuring-gmail/
up
6
kay at rrr dot de
9 years ago
imap_open is very simple to use, but struggles a litte bit on setups with ssl and tls.

this are tested examples for different hosts and protocols.

uncomment the host/protocol line and fill in correct username and password.

Kay

<?php

#######
# localhost pop3 with and without ssl
# $authhost="{localhost:995/pop3/ssl/novalidate-cert}";
# $authhost="{localhost:110/pop3/notls}";

# localhost imap with and without ssl
# $authhost="{localhost:993/imap/ssl/novalidate-cert}";
# $authhost="{localhost:143/imap/notls}";
# $user="localuser";

# localhost nntp with and without ssl
# you have to specify an existing group, control.cancel should exist
# $authhost="{localhost:563/nntp/ssl/novalidate-cert}control.cancel";
# $authhost="{localhost:119/nntp/notls}control.cancel";

######
# web.de pop3 without ssl
# $authhost="{pop3.web.de:110/pop3/notls}";
# $user="kay.marquardt@web.de";

#########
# goggle with pop3 or imap
# $authhost="{pop.gmail.com:995/pop3/ssl/novalidate-cert}";
# $authhost="{imap.gmail.com:993/imap/ssl/novalidate-cert}";
# $user="username@gmail.com";

$user="username like above";
$pass="yourpass";

if (
$mbox=imap_open( $authhost, $user, $pass ))
        {
         echo
"<h1>Connected</h1>\n";
        
imap_close($mbox);
        } else
        {
         echo
"<h1>FAIL!</h1>\n";
        }

?>
up
5
hashampel at yahoo dot de
5 years ago
Subfolders of INBOX have to be seperate by dot like this: 'INBOX.test'
$mailbox = '{example.example.com:143/imap/novalidate-cert}INBOX.test'
up
3
shaikh_zaid at yahoo dot com
13 years ago
imap_open will not open a stream if your server operates with Transport Layer Security (i.e. TLS) imap_open connects with SSL if its there. So try opening mailbox as

$mailbox="{mail.domain.com:143/imap/notls}";
or
$mailbox="{mail.domain.com:110/pop3/notls}"; This works...

Some mail server requires you to provide username@domain.com so you can always use. user@doamin.com

$conn=imap_open($mailbox, $username, $password);

Some server may ask for username as "user=user@domain.com"

:)
up
3
dominic_mayers at yahoo dot com
2 years ago
This code demonstrates features that are not well documented at this time. The main feature is that the selected mailbox in imap_open (or reopen)  and the specified mailbox in other imap functions are unrelated.  It has been tested with Gmail and with a Dovecot IMAP server.  The mailbox separator depends on the server. Gmail: "/"  Dovecot: "."  If you want to test with Gmail, you need to turn on "Access for less secure apps" in your account.

<?php
 
// Change these.
 
$server    = "{imap.gmail.com:993/imap/ssl/novalidate-cert}";
 
$email     = "example@gmail.com";
 
$password  = "password";

 
// The code assumes that the folders Test/Sub1/Sub11, etc. exist.
 
$selected  = "{$server}Test/Sub1/Sub12";
 
$conn      = imap_open($selected, $email , $password);

 
// This returns the $specified mailbox and its sub mailboxes,
  // even if the $specified mailbox is outside the $selected mailbox.
 
$specified "{$server}Test/Sub1";
 
$boxes     = imap_list($conn, $specified , '*');
 
print_r($boxes);
 
 
// This appends the message in the $specified mailbox.
  // It ignores the $selected mailbox.
 
imap_append($conn, $specified
                    
, "From: me@example.com\r\n"
                    
. "To: you@example.com\r\n"
                    
. "Subject: test\r\n"
                    
. "\r\n"
                    
. "this is a test message, please ignore\r\n");

 
// This changes the $selected mailbox
 
$selected = "{$server}Test/Sub1";
 
imap_reopen($conn, $selected);

 
// This moves a message from the $selected to the $specified mailbox
  // In this case, the specified mailbox does not include the server.
 
imap_mail_move ($conn , "1" "Test");
 
imap_expunge($conn);
 
imap_close($conn);
 
// If you executed this code with a real IMAP server,
  // the message is now in the Test mailbox !
?>
up
3
rvarkelen AT hortimax.nl
15 years ago
In order to make a IMAP connection to a Microsoft Exchange Server 5.5, I used this connection-string :

<?php
if(imap_open ("{192.168.1.6:143/imap}Inbox", "DOMAIN/USERNAME/ALIAS", "PASSWORD"))
{
    echo
'Connection success!';
}
else
{
    echo
'Connection failed';
}
?>

By replacing "Inbox" with, e.g. "Tasks", its possible to see all your tasks. I Hope this helps anybody!

Regards
up
3
brojann at netscape dot com
17 years ago
You can do

<? $foo = imap_errors(); ?>

to clear unwanted warning messages like 'Mailbox is empty'
up
4
Martin Eckardt
8 years ago
Since Version 5.3.2 there's a 6th parameter available to disable authentication with GSSAPI or NTLM:

Example:
<?php
$mbox
= imap_open("{w2010ExchangeServer:993/imap/ssl}", $user, $password, NULL, 1, array('DISABLE_AUTHENTICATOR' => 'GSSAPI'));
?>

This solves the problem with Exchange 2010 for me. As a reference see https://bugs.php.net/bug.php?id=33500
up
3
frederik at roal dot no
17 years ago
For all imap functions where you specify the mailbox string it is important that you ALWAYS use IP (not hostname) and the portnumber. If you do not do this imap functions will be painfully slow.
Using hostname instead of IP adds 3 seconds to each IMAP call, not using portnumber adds 10 seconds to each imap call. (hint: use gethostbyname() )
up
1
mightycpa
10 years ago
My script kept on timing out, even though the syntax was spot on... ultimately, I figured out that the port was blocked by my webhost, where I ran this on a shared server...

I post this just in case you miss this obvious, like I did.
up
1
m dot stoel at cyberkinetic dot nl
14 years ago
a little tip for those who get really frustrated even after reading all the right solutions and implementing them but still get the same errors or none at all..:
after having changed the code.. restart the httpd deamon..

for Fedora or any other Red Hat Linux OS (/etc/init.d/httpd restart).

After this you will be able to make a imap/pop3 stream from apache..
up
1
liamr at umich dot edu
15 years ago
To authenticate using kerberos V / GSSAPI, you might need to add "user=" to the connection string.. eg:

$mbox = imap_open( "\{imap.example.com:143/imap/notls/user=" . $user . "}INBOX", $user, $passwd );

Our IMAP servers won't allow a user other than the user specified in the kerberos credentials connect using those credentials unless you specify that extra "user=" in the connection string.  Passing it as an argument to imap_open() doesn't seem to be enough.
up
2
kaper at nexgc dot com
16 years ago
I had been having lots of trouble trying to get imap_open to connect to an imap server.  Then I found another post online that suggested this and it worked, so I am going to post it here.  I hope this helps others..

"I have tried with the following strings instead and it works:

for pop3: {www.server.com:110/pop3/notls}INBOX

and for imap: {www.server.com:143/notls}INBOX.
up
1
askalski at synacor dot com
12 years ago
By default, imap_open() will retry an incorrect password 3 times before giving up.  This is a feature built into the c-client library intended for interactive mail clients (which can prompt the end user for a new username/password combo.)

The new optional parameter "$n_retries" allows PHP to override the default retry limit.  There is absolutely no reason to leave this at default, or to set it to any value other than 1.  This is especially important if the mail server you're using locks users out after too many login failures.
up
1
reg1barclay at REMOVETHIS dot live dot it
11 months ago
On Windows, this function does not use certificates in directories listed by openssl_get_cert_locations(): it use system's certificates store. If you want to use a certificate signed by a test authority, you must add root certificate of your test authority to Window's certificates store.
up
1
Ap.Muthu
4 years ago
An old archived 2006 PHP script to retrieve IMAP POP3 email into a MySQL database and as files is at:
http://web.archive.org/web/20060411020022/http://www.sellchain.com/phPOP3/phPOP3.txt
up
1
Lisboa
4 years ago
The error: Unknown: Mailbox is empty (errflg=1) in Unknown on line 0
appears when:

1)  use imap_open to connect
2) then use imap_search ALL to retrieve emails

but there are no messages available. To avoid this error, check first the number of messages in a mailbox using imap_status. Only if there are messages available then you can use the imap_search.
up
0
LANGE.LUDO
11 months ago
If you get Kerberos errors like:
« Notice: Unknown: Kerberos error: Credentials cache file '/tmp/krb5cc_0123' not found (try running kinit) ».

Try to add as a $param:
<?php array('DISABLE_AUTHENTICATOR' => 'GSSAPI') ?>

eg.
<?php
$imap_stream
= imap_open('{mail.domain.tld:993/imap/ssl}' , 'username' , 'password', null, 1, array('DISABLE_AUTHENTICATOR' => 'GSSAPI'));
?>
up
0
Anonymous
1 year ago
Function to test most of the possible options of a connection:

function imapConfig($options, $i=0, $till = array()) {
        if(sizeof($options)==$i)
            return $till;
       
        if(sizeof($till)==0)
            $till[] = '';
       
        $opt = $options[$i];
        $new = array();
        foreach($till as $t) {
            foreach($opt as $o) {
                if(strlen($o)==0)
                    $new[] = $t;
                else
                    $new[] = $t.'/'.$o;
            }
        }
        return imapConfig($options, $i+1, $new);
    }

function imap_test($server, $port, $dir, $username, $passw) {
        $options = array();
        //$options[] = array('debug');
        $options[] = array('imap', 'imap2', 'imap2bis', 'imap4', 'imap4rev1', 'pop3'); //nntp
        $options[] = array('', 'norsh');
        $options[] = array('', 'ssl');
        $options[] = array('', 'validate-cert', 'novalidate-cert');
        $options[] = array('', 'tls', 'notls');
       
        $configOptions = imapConfig($options);
        foreach($configOptions as $c) {
            $mbox = @imap_open("{".$server.":".$port.$c."}".$dir, $username, $passw);
            echo "<b>{".$server.":".$port.$c."}".$dir."</b> ... ";
            if (false !== $mbox) {
                echo '<span style="color: green"> success</span>';
            }
            else {
                echo '<span style="color: red"> failed</span>';
            }
            echo '<br>';
        }
    }

imap_test('mail.server.de', 143, 'INBOX', 'username', 'pwd');
up
0
Tim
4 years ago
Hi

I was struggling with the Gmail Imap/pop connection. It keeps saying too many failed login connections were made.

Thing I did:
https://www.google.com/settings/security/lesssecureapps
Clicked "Turn on"
> worked!

So last step could be used but remember your account will be at a certain security risk. Anyway it comes in handy to develop...
up
0
Brian Law
5 years ago
imap_open()
validate SSL certificate does not support Subject Alternative Name (SAN) certificate. It only validate against the Subject/Common name.
up
0
jeff1326
8 years ago
If your connection is too slow, try it with port and without domain.

<?php
//Normal connection
$mailbox = imap_open("{SERVER}INBOX", $username, $password);

//Faster connection
$mailbox = imap_open("{SERVER:143}INBOX", $username, $password);

//Very slow connection
$mailbox = imap_open ("{SERVER.DOMAIN}INBOX", "DOMAIN/".$username, $password);
?>
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0
david at brayworth dot com dot au
8 years ago
I managed to use this function against Exchange 2010 without recompiling to disable kerberos

It's important to me that php installs per the standard package (yum install php)

Exchange 2010 triggers kerberos in php, and you require the kinit thing (search around google for "imap_open kinit exchange 2010" and you will find this)

To get it working I had to:
1. setup the krb5.conf file correctly
2. do a kinit username@DOMAIN.DOM with a valid username / password
3. rename the ticket file to reflect the user id of apache (usually 48)
   /tmp/krb5cc_48
4. fix ownership
   chown apache.apache /tmp/krb5cc_48

but the exchange server will use the kerberos ticket and not the username password - unless you use ssl

<?php

    $imap_user
= "username";
   
$imap_pass = "password";
   
$imap_server = "{w2010kExchangeServer:993/novalidate-cert/ssl}";

   
$mbox = imap_open("{$imap_server}INBOX", $imap_user, $imap_pass);

   
$sorted_mbox = imap_sort($mbox, SORTDATE, 0);
   
$totalrows = imap_num_msg($mbox);
    print
"$imap_server\n";

   
$startvalue = 0;
    while (
$startvalue < $totalrows) {

       
$headers = imap_fetchheader($mbox, $sorted_mbox[ $startvalue ] );
       
$subject = array();
       
preg_match_all('/^Subject: (.*)/m', $headers, $subject);
        print
$subject[1][0] . "\n";

       
$startvalue++;
    }
?>
   
One small step for php / exchange, one Giant leap for David  ....
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0
egoman69 at hotmail
9 years ago
"Couldn't open stream {127.0.0.1:143/imap/notls}INBOX"

Solved by only replacing 127.0.0.1 with localhost, php and IMAP server both in same machine, not through Proxy or anything. Weird!
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0
oz49erfan
9 years ago
Make sure your PHP is enabled with imap via the phpinfo() function

'--with-imap-dir=/opt/lampp' '--with-imap-ssl' '--with-imap=/opt/lampp'

and

IMAP c-Client Version 2007e
SSL Support Yes

I noticed that my apache script was working but my cli script was not. Turns out my php cli executable didn't have imap setup so I had to use another php cli executable.
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Jason Pires
11 years ago
Dears.
In my case, e-mail host was the IMAP enabled.
So, just use the imap_open as the very simple form like:

$mailbox = "{mail.myhost.com:143/notls}INBOX";
$user = "me@myhost.com";
$pass = "mypassword";

$connection = imap_open($mailbox,$user,$pass) or die(imap_last_error()."<br>Connection Faliure!");

thanks!
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itstooloud
11 years ago
Works with Gmail's new IMAP function for personal and for Google Apps.

$mbox = imap_open ("{imap.gmail.com:993/imap/ssl}INBOX", "username@gmail.com", "password")
     or die("can't connect: " . imap_last_error());
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avizion at relay dot dk
14 years ago
For FreeBSD users...

If you want to have SSL support, you want to install the ports:

mail/php5-imap
security/php5-openssl

Cheers :)

- avizion
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marshall /AT\ pacdemon.org
15 years ago
Thanks for all your comments.  The user comments have saved me countless times.

I'd like to give back in my small way by providing this little tip.  To test your pop or imap services you can use telnet (almost all operating systems should come with a command line telnet client).

Here's the pop3 example (the lines that start with + are the server's response):

    telnet your.pop.host.com 110
    +OK POP3 your.pop.host.com v2001.78 server ready
    user your_username
    +OK User name accepted, password please
    pass your_password
    +OK Mailbox open, 23 messages

Note that your pop server may be on some other port than 110 but that is the default/standard.

Here's the imap example (Lines that have OK near the begining are server responses):

    telnet your.imap.host.com 143
    * OK [CAPABILITY IMAP4REV1...]
    1 LOGIN "your_username" "your_password"
    1 OK [CAPABILITY...] ... User your_username authenticated

This might be old news to some people but I hope it's helpful for many.
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bandpay at hotmail dot com
18 years ago
I have a single comment to add about imap_open.
If you want to connect to a news server, without specifying any news gruop, you can use the following:

<?php
$server
= "{news.servername.com/nntp:119}";
$nntp = imap_open($server,"","",OP_HALFOPEN);
?>

and $nntp will become the connection ID.

Regards
//Babak
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Valerio Pulese
3 years ago
If you get slow imap4/pop3 authentication step
i.e. 5-10 sec just for response, maybe you are connecting to an imap server which is advertising GSSAPI auth mechanism.
Martin Eckardt note could help to speed it up.
<?php
$mbox
= imap_open("{imap server with GSSAPI :993/imap/ssl}", $user, $password, NULL, 1, array('DISABLE_AUTHENTICATOR' => 'GSSAPI'));
?>

Disable GSSAPI if you dont use it.
If your imap/pop server is Dovecot
/etc/dovecot/conf.d/10-auth.conf
...
auth_mechanisms = plain login gssapi
-> auth_mechanisms = plain login
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anthony2009 at ns dot sympatico dot ca
9 years ago
<?php
// You can break out the variables for $mailserver, $port, $user and
// $pass without passing brackets into functions this way. Be sure to use
// the dots to append connection strings, ie "stuff". $variable ."STUFF"
// otherwise will go to imap_open with wrong variable type. :)

$mailserver="mail.example.com";
$port="110/pop3";
$user="aj";
$pass="remax01";
 
if (
$mbox=imap_open( "{" . $mailserver . ":" . $port . "}INBOX", $user, $pass ))
{  echo
"Connected\n";
        
   
$check = imap_mailboxmsginfo($mbox);
         
    echo
"Date: "     . $check->Date    . "<br />\n" ;
    echo
"Driver: "   . $check->Driver  . "<br />\n" ;
    echo
"Unread: "   . $check->Unread  . "<br />\n" ;
    echo
"Size: "     . $check->Size    . "<br />\n" ;
        
   
imap_close($mbox);
} else { exit (
"Can't connect: " . imap_last_error() ."\n");  echo "FAIL!\n";  };
?>
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elizar.palad
14 years ago
thanks to the one who added that the login part should be the whole email address for it to work.. (assuming of course that all other stuff is good and working ;)

to add something, in the 'email address' login name, is not really the email address, ,it's the pop login name plus '@' plus the domain.. hope it's not confusing...

poploginname@domain.com

not

emailaddress@domain.com..
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gasaunde at vcu dot edu
14 years ago
I've found that on my servers I _must_ use imap_errors() and imap_alerts() after an imap_open or this error is thrown in the logs when the mailbox is empty: [error] PHP Warning: (null)(); Mailbox is empty (errflg=1) in Unknown on line 0
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Kyle Putnam
16 years ago
I was getting bizzare errors that I couldn't find documentation about anywhere on Google. I tried connecting to another server and got different, but just as unusual error messages. I even checked the POP3 server logs and it said something about invalid command... I figured it was another libc problem.

Stupidly enough, the problem was that I was using an unset variable for the password! Make sure you don't have an empty username or password... you'll have a hard time debugging the problem ;)
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stefan dot greifeneder at dioezese-linz dot at
16 years ago
Had problems to use imap_open with iMail 6.06 Server. My problem was (sounds stupid): Didn't realise that the username had to be the full email address and not just the login. Maybe this helps some people.
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fxbois at free dot fr
17 years ago
Hi,
I just want to say to all redhat people who have problem (Couldn't open stream) with the connection on the local pop server to use this :
{127.0.0.1:110/pop3/notls}INBOX
hope this help
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jdg11 at po dot cwru dot edu
18 years ago
It would be nice to mention that this function does send headers. It makes sense, but it is not obvious. It took me a while to figure it out. I authenticate against a POP3 server, and set a cookie if the authentication validates. At least I wanted to :) But since it sends a header to the server, setcookie() won't work.
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fferreres at joydivision dot com dot ar
18 years ago
IMAP, POP and NNTP are ok. But plaintext mailboxes are unmentioned here. You just forget the {part} and go for the file (tested on unix):

$mbox = imap_open ($a_mail_box_file_name_in_home_dir, "", "") || die("Snif...:
".imap_last_error());
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phpnet at danepowell dot com
7 years ago
If you are accessing a local mailbox file, i.e. imap_open('/var/mail/www-data', '', ''), you may be restricted in what files you can access.

If PHP IMAP was compiled with the restrictBox option (which I believe most packages are these days), you can only access files relative to $HOME. Paths starting with '/' or '../' will be rejected.
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