Thanks for the help:)
Here is a copy of the mail.log for a failed attempt to receive email.
Nov 27 11:55:14 ns1 postfix/smtpd[3182]: connect from mail06.syd.optusnet.com.au[211.29.132.187]
Nov 27 11:55:16 ns1 postfix/smtpd[3182]: 34F7516EAE: client=mail06.syd.optusnet.com.au[211.29.132.187]
Nov 27 11:55:16 ns1 postfix/cleanup[3201]: 34F7516EAE: message-id=4CF056F2.4070302@therapiesnet.com
Nov 27 11:55:16 ns1 postfix/qmgr[2873]: 34F7516EAE: from=dk@therapiesnet.com, size=824, nrcpt=1 (queue active)
Nov 27 11:55:16 ns1 postfix/smtp[3204]: 34F7516EAE: to=vcch@ns1, orig_to=vcch@vcch.biz, relay=none, delay=0.79, delays=0.75/0.02/0.02/0, dsn=5.4.4, status=bounced (Host or domain name not found. Name service error for name=ns1 type=A: Host not found)
Nov 27 11:55:16 ns1 postfix/cleanup[3201]: C267816EB0: message-id=20101127005516.C267816EB0@ns1.pcsmarts.biz
Nov 27 11:55:16 ns1 postfix/bounce[3205]: 34F7516EAE: sender non-delivery notification: C267816EB0
Nov 27 11:55:16 ns1 postfix/qmgr[2873]: C267816EB0: from=<>, size=2723, nrcpt=1 (queue active)
Nov 27 11:55:16 ns1 postfix/qmgr[2873]: 34F7516EAE: removed
Nov 27 11:55:17 ns1 postfix/smtpd[3182]: disconnect from mail06.syd.optusnet.com.au[211.29.132.187]
Nov 27 11:55:17 ns1 postfix/smtp[3204]: C267816EB0: to=dk@therapiesnet.com, relay=therapiesnet.com[72.29.104.140]:25, delay=0.62, delays=0/0/0.32/0.3, dsn=2.0.0, status=sent (250 OK id=1PM94X-0006WP-Ex)
Nov 27 11:55:17 ns1 postfix/qmgr[2873]: C267816EB0: removed
Regarding the postfix hostname I could well have made a mistake when I set it up. This is not an active live site I am still learning about working with a VPS I am using Linode and eventually would like to move some of my live sites onto it.
I must admit that some basic things still seem to escape me. For instance when I installed Virtualmin I had to set a FQDN I used ns1.pcsmarts.biz as I own the pcsmarts.biz domain and would like to host a few websites on this server. Is there a problem with this as the name?
I have 2 IP address for this VPS and the current Reverse DNS are
69.164.218.202 li133-202.members.linode.com
173.255.226.62 li236-62.members.linode.com
The original setup had vcch.biz on IP 69.164.218.202 I then changed the IP for vcch.biz to 173.255.226.62 to setup a secure certificate for it.
Now pcsmarts.biz is hosted on a shared hosting service elsewhere and ns1.pcsmarts.biz has an A type name record pointing to 69.164.218.202 .
Should I change the reverse DNS for 69.164.218.202 to ns1.pcsmarts.biz ?
And I guess that the email problem is todo with the lack A type name for 173.255.226.62
Do I need to change the postfix hostname?
If I do how will this affect other sites hosted on the original 69.164.218.202 IP?