Considered UNSOLICITED BULK EMAIL, apparently from you

[Content-filter at rock.pidgin.im]

A message from <security at pidgin.im>
to: security at pidgin.im

was considered unsolicited bulk e-mail (UBE).

Our internal reference code for your message is 31565-10/w-2iuptUS7jU

The message carried your return address, so it was either a genuine mail
from you, or a sender address was faked and your e-mail address abused
by third party, in which case we apologize for undesired notification.

We do try to minimize backscatter for more prominent cases of UBE and
for infected mail, but for less obvious cases some balance between
losing genuine mail and sending undesired backscatter is sought,
and there can be some collateral damage on either side.

First upstream SMTP client IP address: [127.0.0.1] 
According to a 'Received:' trace, the message apparently originated at:
  [88.255.202.194], way.correctnic.com unknown [88.255.202.194]

Return-Path: <security at pidgin.im>
From: <security at pidgin.im>
Message-ID: <Apple-Mail-195AA26D-3625-ABFC-C065-F7C2FB5DB71A at pidgin.im>
Subject: Document 2

Delivery of the email was stopped!
-------------- next part --------------
A non-text attachment was scrubbed...
Name: header.hdr
Type: text/rfc822-headers
Size: 573 bytes
Desc: Message header section
URL: <https://pidgin.im/cgi-bin/mailman/private/security/attachments/20160322/cd4cde1d/attachment.bin>