Why procmail didn't match this rule?

I have the following rule to send all emails with suspicious attachments to a dedicated folder:

# Emails with attachments
:0
* ^Content-Type: multipart/
{
  :0 B
  * ^Content-Type: application/(zip|x-zip-compressed)|
    ^Content-Type:.*name=.*.(zip|exe|rar|rtf|docm)|
    ^Content-.*attachment.*name=.*.(zip|exe|rar|rtf|docm)|
    ^Content-.*application.octet-stream.*name=.*.(zip|exe|rar|rtf|docm)
  $L/.3_my._quarantine/
}

However I just noticed that an email with a zip attachment slipped through it, and I can't figure out why (my@email and myemail contained my email and my host which I obfuscated):

X-Priority: 3 (Normal)
From: scaer47578858@myemail.com
To: "my@email.com"
 <my@email.com>
Subject: Attached File
Date:Mon, 16 May 2016 17:16:47 +0530
Message-Id: <272843899191709486.0001.scaerTxNo.0051@scaerF04EF6.myemail.com>
Mime-Version: 1.0
Content-Type: multipart/mixed;
 boundary="53594271E1EBE7BBDAF4BBA9"

--53594271E1EBE7BBDAF4BBA9
Content-Type: application/x-compressed;
 name="my@email.com_3602848_97891076672132.zip"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
 filename="my@email.com_3602848_97891076672132.zip"

AFAICS ^Content-Type:.*name=.*.(zip|exe|rar|rtf|docm) should match? Is it because of quotation marks?