こちらのフリーアドレスは2つ使用させていただいてるのですが、
1つの方だけ受信できなくなりました。
なぜでしょうか？？

●OS：MacOS10.3.8
●メーラー：AppleMail1.3.9
●アカウント：*******@mail.707.to

送信して戻ってくるメールは、以下です。

--------------------------
Hi. This is the qmail-send program at mail5.zenno.net.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<*******@mail.707.to>:
user is over quota

--- Below this line is a copy of the message.

Return-Path: <*******@mac.com>
Received: (qmail 5793 invoked from network); 5 Apr 2005 01:46:54 +0900
Received: from unknown (HELO mgw.zenno.net) (192.168.0.89)
by mail5.zenno.net with SMTP; 5 Apr 2005 01:46:54 +0900
Received: (qmail 43629 invoked by uid 7798); 5 Apr 2005 01:46:54 +0900
Received: from *******@mac.com by mgw.zenno.net by uid 7791 with qmail-scanner-1.22
( Clear:RC:0(17.250.248.44):.
Processed in 0.033619 secs); 05 Apr 2005 01:46:54 +0900
Received: from unknown (HELO smtpout.mac.com) (17.250.248.44)
by mgw.zenno.net with SMTP; 5 Apr 2005 01:46:54 +0900
Received: from mac.com (smtpin07-en2 [10.13.10.152])
by smtpout.mac.com (Xserve/8.12.11/smtpout12/MantshX 4.0) with ESMTP id j34GknRA004011
for <*******@mail.707.to>; Mon, 4 Apr 2005 09:46:50 -0700 (PDT)
Received: from [10.0.1.2] (yahoobb221018008079.bbtec.net [221.18.8.79])
(authenticated bits=0)
by mac.com (Xserve/smtpin07/MantshX 4.0) with ESMTP id j34Gklkc009610
for <*******@mail.707.to>; Mon, 4 Apr 2005 09:46:48 -0700 (PDT)
Mime-Version: 1.0 (Apple Message framework v619.2)
To: *******@mail.707.to
Message-Id: <9d2e7b633ebd1094fec8123c9c50f5ef@mac.com>
Content-Type: multipart/alternative; boundary=Apple-Mail-3--965463140
From: <*******@mac.com>
Subject: =?ISO-2022-JP?B?GyRCJUYlOSVIGyhCNA==?=
Date: Tue, 5 Apr 2005 01:46:46 +0900
X-Mailer: Apple Mail (2.619.2)


--Apple-Mail-3--965463140
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
charset=ISO-2022-JP;
format=flowed

テスト4
--Apple-Mail-3--965463140
Content-Transfer-Encoding: 7bit
Content-Type: text/enriched;
charset=ISO-2022-JP

<fontfamily><param>Hiragino Kaku Gothic Pro</param>テスト</fontfamily>4
--Apple-Mail-3--965463140--

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