[Fwd: Re: ms Exchange alternative (Dovecot)]

gerald davies gerald_davies at hotmail.com
Fri Jan 30 22:50:02 GMT 2004

indeed. i thought large binaries had security implications so you're not the 
only one.

also, i thought qmail was 'closed source' (?) which i always think is a bit 
dodgy too from a 'its really secure' perspective.

postfix was made up of small binaries and stuff.  not touched exim and as 
for java...

doesn't Lotus offer Domino on linux? (i'm sure i've worked with something 
like that before).

my 2 pence worth

>From: "Frank Shute" <frank at esperance-linux.co.uk>
>Reply-To: Frank Shute <frank at esperance-linux.co.uk>
>To: Martin Hepworth <martinh at solid-state-logic.com>
>CC: freebsd-users at uk.freebsd.org
>Subject: Re: [Fwd: Re: ms Exchange alternative (Dovecot)]
>Date: Fri, 30 Jan 2004 20:18:40 +0000
>On Fri, Jan 30, 2004 at 08:57:56AM +0000, Martin Hepworth wrote:
> >
> > >
> > >
> > >Maybe a greater part of the slowness problem is Sendmail. I ran Qmail
> > >on a 486 with < 8 Mb & there were no slowness problems. BTW, Qmail is
> > >still on the same release it was some 5 yrs ago hence it hasn't
> > >suffered from bloat since. I don't know if the same can be said of
> > >Sendmail.
> > >
> >
> > an alternative maybe exim, which is much faster than sendmail, but is
> > still runs around 4MB of 'size' in top..prob around the same size once
> > you've added up all the qmail daemon and the multiple exim's that run
> > using shared resources.
> >
>My primary gripe about Sendmail (and Exim) is that they are large
>single binaries.
>I was taught that when developing software you should try and avoid
>that as much as possible as it makes it difficult to white/black box
>test your software. A more desirable setup is to break your
>application up into a number of different processes and use IPC which
>subsequently makes development easier and the subsequent application
>less prone to error and security problems.
>The number of problems found in Sendmail (and even Exim has had at
>least one exploit fairly recently) as compared to Qmail (none in 5+
>yrs) seems to bear this out.
>Have I been taught wrongly? Perhaps others with experience of
>developing complex pieces of software would care to comment.
>I'm also rather surprised that an MTA hasn't been written in Java,
>certainly no popular ones AFAIK. Is it just that it's considered too
>slow still?
>  Frank
>    Boroughbridge.
>  Tel: 01423 323019
>      ---------
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