amd64/99475: Mail attachement was modified
Andrew Reilly
andrew-freebsd at areilly.bpc-users.org
Fri Jul 7 01:30:24 UTC 2006
On Fri, Jul 07, 2006 at 12:30:28AM +0000, Albert wrote:
> The following reply was made to PR amd64/99475; it has been noted by GNATS.
>
> From: Albert <alpha2 at sansha.tatung.com.tw>
> To: bug-followup at FreeBSD.org
> Cc:
> Subject: Re: amd64/99475: Mail attachement was modified
> Date: Fri, 07 Jul 2006 08:22:32 +0800
>
> I just use FreeBSD 6.1/amd64 SMP to set up a mail server.
> I use the default sendmail.cf, open relay on my own network, and send
> mail via Thunderbird to myself.
> Three type of encoding are used -- big5, iso-2002-jp, iso-8859-1
> The mail content is all okey. (I mean the mail content is unchanged)
> Then I test a mail with attachments -- pdf, ppt, xls, doc, txt, jpg.
> When I receive the mail by pop3, all the attachments became random code
> except text files whatever the encoding is.
> I upgrade sendmail form 8.13.6 to 8.13.7. The results are the same.
>
> Now I back to FreeBSD 5.5/i386 SMP + sendmail 8.13.6, All works perfect
> as I want.
There was a recent security advisory involving sendmail and MIME
attachments that could be related to this.
I don't understand what business sendmail has even *looking*
at the MIME structure of a message, let alone mucking about
with it. I'd say use that as yet another reason to change to
a different MTA. (I noticed that NetBSD seems to have removed
sendmail from the base system altogether in recent current, in
favour of postfix...)
Cheers,
--
Andrew
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