[Dovecot] istream-limit.c - assertion failed

[Mail Admin]

dovecot: Jan 14 12:25:49 Error: IMAP(xxxuser): file istream-limit.c:
line 85 (_seek): assertion failed: (v_offset <= lstream->v_size)

That error message is generated when squirrelmail 1.4.4-rc1 attempts to
access this peculiar message partially quoted below.  It doesn't happen
(after copying the message to our testing account) accessing it through
squirrelmail now.  But it did.

The server is running test61 configured --without-pop3d
--with-ssl=openssl and --disable-ipv6 and running on FreeBSD 5.2.1.

I'm not sure if this bit of a message is useful, but I have seen that
error message in dovecot's log more than just this once.

Thanks,
Derek

Message-id: <xxxmessageid>
MIME-version: 1.0
Content-type: multipart/mixed;
boundary=MS_Mac_OE_3188476518_1255852_MIME_Part
User-Agent: Microsoft-Outlook-Express-Macintosh-Edition/5.02.2022

> This message is in MIME format. Since your mail reader does not
understand this format, some or all of this message may not be legible.

--MS_Mac_OE_3188476518_1255852_MIME_Part
Content-type: text/plain; charset="ISO-8859-1"
Content-transfer-encoding: quoted-printable

[bunch of readable text stuff here]

--MS_Mac_OE_3188476518_1255852_MIME_Part
Content-type: multipart/appledouble;
   boundary="MS_Mac_OE_3188476515_1257535_MIME_Part"


--MS_Mac_OE_3188476515_1257535_MIME_Part
Content-type: application/applefile; name="xxx.doc"
Content-transfer-encoding: base64
Content-disposition: attachment

[something short encoded here]

--MS_Mac_OE_3188476515_1257535_MIME_Part
Content-type: application/msword; name="xxx.doc";
 x-mac-creator="4D535744";
 x-mac-type="5738424E"
Content-disposition: attachment
Content-transfer-encoding: base64

[something big encoded here]


--MS_Mac_OE_3188476515_1257535_MIME_Part--


--MS_Mac_OE_3188476518_1255852_MIME_Part--