Re: DNS Issues

On Fri, 23 Jul 2010, Dave Taylor wrote:

> Hi, I'm using an old Xmail 1.21 on Windows server 2003, which has been rock 
> solid for years.
> Recently I've started to see occasional DNS issues where xmail is attempting 
> to send to the A record IP rather than using the MX.
> Looking in the Xmail MX cache folder, it has the correct MX servers for the 
> domain yet still sends to A record.
> One particular domain that causes this issue regularly is kumon.co.uk.  It 
> has 2 mx records (correct in the xmail MX cache) and an A record that points 
> to a different IP.  Xmail connects to the A record, which appears to be 
> running a mail server for some other domain!
> 
> Also, if i turn on the 'check mailer domain' occasionally I get incoming 
> mail rejected as 'your domain has not MX records', even though I can do a 
> manual mx lookup ok.
> 
> I'm running my own Bind 8 DNS server on the same machine (for several years 
> also), I'm thinking there must be some connection or timeout problems 
> somewhere.
> 
> Do you think updating to the latest XMail would improve this?

While I am not sure, there have been numerous changes/fixes to the DNS 
code from 1.21 to 1.27.
I would definitely recommend upgrading to 1.27, besides the DNS issue.


- Davide

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