On Wed, 13 Nov 2002, DOLIST Technical Center wrote:

>
> Hello,
>
> I read on the Change Log that XMail 1.11 have
>
> "Improved DNS resolution for not existing domains."
>
> I've installed it but our control is the mail router output monitoring
> and it was very quiet (5-10%). Some customers asking why their mail didn't
> arrived as quickly as before, so I've decided to put back the 1.10
> version. The monitoring goes around 99% for around 35.000 mails as a
> burst.
>
> Is there a possibility that as 1.10 has a lot of catched DNS and that
> the 1.11 didn't handles DNS the same way and make more time to resolve
> and work ? A lot of messages where still in MESS folders, not RSND.

The new DNS resolution is not really new :) It slightly changes the
behaviour when an NXDOMAIN error code is received. Before it was not
handled correctly and XMail continued to ask through other DNS for such
domain. Right now it does the right thing by stopping the search and
reporting a "not existing domain" error.



- Davide


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