Description:
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【PHP version: PHP 5.2】

Currently, the imap_open() function does not allow to connect to an email server when I include braces in password(the third argument).

I have already tested some of the password pattern as I describe down bellow.

Test script:
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ex.1) Failure
$password = "abc}def";
imap_open ($mailbox , $username , $password);

ex.2) Success
$password = "abc{}def";
imap_open ($mailbox , $username , $password);