why "imap_open " delay a long time ?

From: Date: Fri, 12 Dec 2003 01:03:44 +0000
Subject: why "imap_open " delay a long time ?
Groups: php.general 
Request: Send a blank email to php-general+get-172545@lists.php.net to get a copy of this message
hi I have worked with imap functions for a long time . When I use "imap_open" connecting to a imap server ,it always takes a 20 second delay. I use like this : <?php $mbox = imap_open("{202.200.0.8:143}INBOX","user","pass"); imap_close($mbox); ?> why this happen?

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