Re: [Exim] Sender Verify

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Author: Ron McKeating
Date:  
To: Nigel Metheringham
CC: Exim-Users (E-mail)
Subject: Re: [Exim] Sender Verify
On Thu, 2004-07-01 at 15:08, Nigel Metheringham wrote:
> On Thu, 2004-07-01 at 14:44, Ron McKeating wrote:
> > Looking at page 339/50 of Phils's book, I am still not clear on how far
> > sender verify goes. It implies that it is only interested in where it
> > can send a bounce message to, so does that mean if it can find an mx
> > value for the domain part then it is happy ?
>
> verify = sender
>
> does a routing check only, so its run through exim's routers. For
> remote addresses this normally means its a check on MX existence/sanity
> only.
>
> verify = sender/callout
>
> will effectively do a check to the level of the user, and also picks up
> dead/unreachable MXes etc, unless defer_ok is set.
>


I really like the sound of the callout option, but it scares me, will it
break things for lots of users if I switch it on ?

Ron

>     Nigel.
> --
> [ Nigel Metheringham           Nigel.Metheringham@??? ]
> [ - Comments in this message are my own and not ITO opinion/policy - ]

>
>
>
> --
>
> ## List details at http://www.exim.org/mailman/listinfo/exim-users Exim details at http://www.exim.org/ ##

--
Ron McKeating
Senior IT Services Specialist
Internet Services and Software Solutions
Loughborough University
01509 222329