Undefined property: stdClass::$host

[putnik]

Similar to what was in issue #149.

If the header contains an incorrect value, e.g.

From: http://example.com@noreply

then the imap_rfc822_parse_headers() function returns such an array:

array(3) {
  [0] =>
  class stdClass#3 (1) {
    public $mailbox =>
    string(4) "http"
  }
  [1] =>
  class stdClass#4 (2) {
    public $mailbox =>
    string(13) "//example.com"
    public $host =>
    string(7) "noreply"
  }
  [2] =>
  class stdClass#5 (0) {
  }
}

So host doesn't exist in first element in src/PhpImap/Mailbox.php at line 550:

$header->fromAddress = strtolower($head->from[0]->mailbox . '@' . $head->from[0]->host);

[StApostol]

I also get this error when getting the message with header
From: =?UTF-8?Q?first_part:_second_part?= <info@somesite.com>

"from": array:3 [
    0 => {
      "mailbox": "=?UTF-8?Q?first_part"
    }
    1 => {
      "personal": "_second_part?="
      "mailbox": "info"
      "host": "somesite.com"
    }
    2 => {}
  ]

[Sebbo94BY]

http://example.com@noreply is no valid and RFC conform email address. I'm not sure, how you could even receive such an email header.

However, this explains, why the imap_rfc822_parse_headers() function is unable to get the correct values.

I've just committed a change to grab these information from array 0 (preferred) or 1. If none of both contains the searched value, it will be set to NULL.

Please note, that this library will NOT check, if the values are RFC conform and valid or not. You should already make sure at your mail server, that you only send / receive RFC conform emails.