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Re: EXIM - fallback to smarthost

On Thu, Oct 06, 2005 at 04:44:30PM +0100, Gary Stainburn wrote:
> My live server is Exim 3, but I'm in the process of updating to a new 
> box running Exim 4.
> I don't have a smarthost set and SMTP delivery is set direct as I prefer 
> this for both performance and logging reasons.

You may prefer it but the target doesn't.  That's why your email is
being blocked. 
> However, I have just chaanged ISPs and for some reason my IP address 
> range is on an RBL.

"For some reason"?  Give us your IP address and we'll tell you why.
There's a good chance that you're in a dynamic IP address range and that
will be blocked by a LOT of hosts.
> Is it possible with both versions to configure it so that it tries to
> deliver directly, but fall back to my ISP's SMTP relay if it fails.

I don't think so.  SMTP doesn't have an error for "we don't like your
source address".  The transaction is being rejected but you really don't
know why - different servers reject with different messages and error

What you can do with sendmail is to add mailertable entries for specific
domains that will override the default smart host.

Personally, I gave up and send all email through my ISP.


Ed Wilts, RHCE
Mounds View, MN, USA
mailto:ewilts ewilts org
Member #1, Red Hat Community Ambassador Program

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