Description:
------------
imap_rfc822_parse_adrlist fails when it should decode emailadresses using following format

test@test.de <test@test.de>

It gets confused by the first @ .

Changing the string to

test\@test.de <test@test.de>

makes it working.

Reproduce code:
---------------
$testSting = "test1@test.de <test2@test.de>";
print "<pre>";
print_r(imap_rfc822_parse_adrlist($testString,''));
print "</pre>";

Expected result:
----------------
Array
(
    [0] => stdClass Object
        (
            [mailbox] => test2
            [host] => lists.net
            [personal] => test1@lists.net
        )

)

Actual result:
--------------
Array
(
    [0] => stdClass Object
        (
            [mailbox] => test1
            [host] => lists.net
        )

    [1] => stdClass Object
        (
            [mailbox] => UNEXPECTED_DATA_AFTER_ADDRESS
            [host] => .SYNTAX-ERROR.
        )

)