Bug#315180:

[Marc Haber]

user exim4 at packages.debian.org
usertags #315180 pending-maintaner-discussion close-20060430
severity #315180 wishlist
thanks

On Mon, Jun 20, 2005 at 08:07:29PM -0400, sam wrote:
> shouldn't the last line be change to:
> 
>     verify = recipient/callout=defer_ok

I don't think so.

> In other words, merely doing a recipient verify on a domain for which  
> you relay doesn't really return any useful information. (Unless I'm  
> missing something).

This avoids, for example, accepting mail for a domain that is in
relay_to_domains but for which no routing information is available,
and therefore helps catching configuration errors.

>A callout is what I'd think you want.

I am very reluctant in enabling callouts by default since this can add
significant load on the target system.

> I could  
> go either way on the defer_ok option, but my preference is not to  
> generate 4xx messages  when acting as a relay.

Well, not accepting messages for a domain if the domain's primary MX
is unavailable is kind of broken behavior for a secondary MX.

I am open to arguments that might convince me, but currently I think
that the default config is fine and consistent with the rest of the
config's policy. If somebody wants other behavior he/she is free to
change the configuration with an editor.

I am leaving this bug open for arguments until the end of April 2006,
and will close it if I have not been convinced until then.

Greetings
Marc

-- 
-----------------------------------------------------------------------------
Marc Haber         | "I don't trust Computers. They | Mailadresse im Header
Mannheim, Germany  |  lose things."    Winona Ryder | Fon: *49 621 72739834
Nordisch by Nature |  How to make an American Quilt | Fax: *49 621 72739835