dovecot - Sep 2013 - Attachment file larger than expected

Hello,

	I'm using dovecot 2.1.16 with SiS configured as:

mail_attachment_dir = <mypath>
mail_attachment_min_size = 128 k
mail_attachment_fs = sis posix
mail_attachment_hash = %{sha1}

	I'm having a few errors like:

Sep 18 15:46:32 myotis51 dovecot: imap(igd): Error: Attachment file 
/mail/users/attachments/16/b0/16b0b2023a903db14d7f7bcdb1cc04c3f67a4fcb-b32c0a2aa6ae39527c870000a9061514
larger than expected (235866)

	They are really few and users haven't reported any problem, but the 
errors are there.

	In this case, actual file size of the attachment is:

amateo_adm at myotis51:~$ sudo stat 
/mail/users/attachments/16/b0/16b0b2023a903db14d7f7bcdb1cc04c3f67a4fcb-b32c0a2aa6ae39527c870000a9061514
   Fichero: 
?/mail/users/attachments/16/b0/16b0b2023a903db14d7f7bcdb1cc04c3f67a4fcb-b32c0a2aa6ae39527c870000a9061514?
   Tama?o: 174476    	Bloques: 344        Bloque E/S: 4096   fichero regular
Dispositivo: fc00h/64512d	Nodo-i: 152334473   Enlaces: 2
Acceso: (0600/-rw-------)  Uid: ( 2012/   vmail)   Gid: (  204/   vmail)
Acceso: 2013-09-18 15:46:20.540728654 +0200
Modificaci?n: 2013-09-18 15:46:20.556728948 +0200
       Cambio: 2013-09-18 15:46:20.556728949 +0200
     Creaci?n: -

	and file is identified as:

amateo_adm at myotis51:~$ sudo file 
/mail/users/attachments/16/b0/16b0b2023a903db14d7f7bcdb1cc04c3f67a4fcb-b32c0a2aa6ae39527c870000a9061514
/mail/users/attachments/16/b0/16b0b2023a903db14d7f7bcdb1cc04c3f67a4fcb-b32c0a2aa6ae39527c870000a9061514:
MIME entity, UTF-8 Unicode text, with very long lines, with CRLF line 
terminators

	Any idea?

-- 
Angel L. Mateo Mart?nez
Secci?n de Telem?tica
?rea de Tecnolog?as de la Informaci?n
y las Comunicaciones Aplicadas (ATICA)
http://www.um.es/atica
Tfo: 868889150
Fax: 868888337

On 19.9.2013, at 14.37, Angel L. Mateo <amateo at um.es> wrote:
> 	I'm using dovecot 2.1.16 with SiS configured as:
> 
> Sep 18 15:46:32 myotis51 dovecot: imap(igd): Error: Attachment file
/mail/users/attachments/16/b0/16b0b2023a903db14d7f7bcdb1cc04c3f67a4fcb-b32c0a2aa6ae39527c870000a9061514
larger than expected (235866)
That's a bug, but it's not very easy to see what's wrong.. v2.2
gives somewhat better error message about this. And the upcoming v2.2.6 will
have even better error message here.

Of course, having better error messages doesn't really fix the problem
itself. I'm not sure but I think there are some fixes related to this in
v2.2, so simply upgrading might help (although it won't fix any old
attachment files if they were written wrong).