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rex.withers

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I want to setup Forward-confirmed reverse DNS (FCrDNS)for my mail server. We host mail locally via Kerio but the web site is on a hosting provider (diferent IP)

For me to do that I really need to use mail.mydomain.com because if I use mydomain.com and set up an A record for that that points to my local WAN IP it may effect web browsing when people dont use the www. subdomain and just type mydomain.com in the browser.

Am I correct? Am I missing something?

If the above is correct, all change the existing local IP RDNS to mail.mydomain.com also but then how do I get Kerio to give out mail.mydomain.com?

When it responds with a HELO now it gives out mydomain.com

Thanks in advance
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BudDurland

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If I'm reading this correctly, what you want to do (use 'mail.mydomain.com' on the mail server) is exactly what you SHOULD do. 'mydomain.com' should only point to your web server. You will have different rDNS records for 'mail.mydomain.com' and 'mydomain.com', although the rDNS for 'mydomain.com' and 'www.mydomain.com' can be the same. If your MX record is set up correctly (i.e. it points to 'mail.mydomain.com', then mail delivery and transmission will not be affected.

Good is better than evil because it's nicer
--Mammy Yokum
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