Re: Insert signature patch

[Carlos Morgado <chbm chbm nu>]

On 2001.05.16 09:20:04 +0100 Brian Stafford wrote:


> Another thought I had was to allow pine's trick of specifying
> a list of fallback servers,
> e.g. "host1.example.org, host2.example.org ..."
> 
shouldn't this be done with dns ?

> Finally, there is another way to start a service ... the way inetd
> does using fork/exec and running the protocol across a pipe or
> AF_LOCAL socket. Sendmail operates this way with the -bs option
> running an SMTP session on its standard input.  This type of operation
> might have its place in libESMTP (if I do this I might add support
> for te LMTP protocol too).  A syntax to allow this might look like
> "|/usr/sbin/sendmail -bs".
> 
that would be great and allow balsa to do away with the --with-esmtp 
sillyness (which i added). actually, when i was doing it i was thinking
the correct aproach would to write a small lib using the libESMTP API
to do local MTA and shipping that with balsa. if you're already planning
on having it on main libESMTP i'm Happy :)


> 
> Right now, I don't think there would be much harm in having the
> fallback behaviour. However, as 587 is adopted for message submission
> and 25 only adds a Received: header, very different behaviour
> can result on each port even if the same server is listening on
> both ports.  Right now, I feel this makes the fallback algorithm
> broken behaviour and thus should not be implemented by libESMTP.
> 

Ok. 

> | should the muas themselfs do this ? any (strong) opinion?
> 
> Other than the problem outlined above, the only issue here is that it
> might interact badly with libESMTP's semantics for the server name,
> especially if I extend the syntax.
> 
> However something along the lines of
> 	...
> 	smtp_set_server (session, "localhost:587");
> 	if (!smtp_start_session (session)
> 		&& smtp_errno () == -ECONNREFUSED) {
> 		smtp_set_server (session, "localhost:25");
> 		smtp_start_session (session);
> 	}
> 	...
> should work OK assuming identical server semantics on both ports.
> I guess if done, this should be #ifdef'ed and a configure option added
> to select the fallback behaviour.
> 

noted.

-- 
Carlos Morgado - chbm(at)chbm(dot)nu - http://chbm.nu/ -- gpgkey: 0x1FC57F0A
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