Re: [cobalt-users] NFS does not support sendmail ?

[Larry Smith <lesmith@xxxxxxxxx>]

On Tuesday 13 April 2004 08:56, Jeff Lasman wrote:
> On Monday 12 April 2004 12:57 pm, Larry Smith wrote:
> > This works (nfs mounting mail areas) when using IMAP
>
> It works with IMAP only when IMAP is using maildir format; IMAP can work
> very well with mbox format as well, but then not on NFS.
>
> > While I have not done this (tried NFS) on a Cobalt, I have done on
> > several other *nix systems and it fails miserably with mailbox (pop3
> > style mailboxes) but works sorta-kind-a-almost with maildir format.
>
> "sorta-kind-a-almost"?  We've had very good results with maildir format;
> I know one ISP that has over a half-million mailboxes on a filestore in
> maildir format. That's a bit better than "sort-kind-a-almost" in my
> book <smile>.

The "sorta-kinda-almost" means not without its own set of problems.  On a 7.93 
GB/s fiber backplane with dedicated network for the NFS - works great.  Put 
it on a LAN across "hubs" with other network traffic and you will see 
periodic time-outs and retrys which give sometimes interesting results back 
to a mail client (try explaining "the server refused your connection to a 
client)....  But yes, all told postfix with maildir works quite well on 
"mounted" media if setup properly...

> But alas, not with a RaQ, unless you do major surgery.

Quite correct.  Did some significant playing with that a while back and 
"broke" most of the GUI email related interface - but got postfix and maildir 
working (but then again if you want redhat 6.2 just buy it)....

-- 
Larry Smith
SysAd ECSIS.NET
sysad@xxxxxxxxx