Email, SMTP & DNS configuration questions
- From: "Jon Lewis" <jon.lewis@xxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Wed, 24 Jan 2007 23:27:50 -0000
Thanks to all who helped me with DNS questions a couple of weeks ago. I
have some more questions please.
Our company SBS 2003R2 server retrieves our emails from a single primary
email account (hosted by our ISP) using the pop3 connector into a global
mailbox. The users emails e.g. user1@xxxxxxxxxxxxx are resolved into the
users mailboxes by our server (user1@xxxxxxxxxxxxx etc. are set up as
aliases of the primary email name at the ISP).
Evidently pop3 retrieval cannot resolve bcc messages which get dumped into
our administrator mailbox as do (for reasons unknown) all incoming read
receipts, so I want to convert to SMTP.
I have gathered that I make 2 DNS record changes:
a new A record
key: mail
value: our external IP address
a new MX record
key: @
value: mail.ourdomain.com
priority value: 10
Do I delete the existing MX record value: ibmr.ISP.com. or up the priority
to say 20 so that if our server is down then mail will be directed to the
ISP server for later pop3 retrieval (Can I still run the pop3 global mailbox
in parallel as a back up and to retrieve any mails addressed to the primary
email account at the ISP itself?)
I'm asking this as the ISP state: "Store and Forward SMTP forwarding on
broadband accounts is not supported. If your broadband connection is
inoperative or your router/hub/server is switched off you will not be able
to receive mail." So presumably this means that if our connection/server is
down then emails will be returned undeliverable. Will retaining the
existing MX record with a modified priority prevent this? Is there a best
practise?
Also there is an existing CName record
key: mail
value: mail.ISP.com
Do I need this or should I modify or delete it?
Many thanks
.
- Follow-Ups:
- Re: Email, SMTP & DNS configuration questions
- From: Cris Hanna [SBS-MVP]
- Re: Email, SMTP & DNS configuration questions
- Prev by Date: Re: Is SBS the right server?
- Next by Date: Re: create forwarding email without user account
- Previous by thread: about exmerge problem
- Next by thread: Re: Email, SMTP & DNS configuration questions
- Index(es):
Relevant Pages
|
Loading
