Re: SMTP or ISP Hosted email ?
- From: Owen Williams [SBS MVP] <Owen@xxxxxxxxxxxxxxxxxx>
- Date: Tue, 8 Aug 2006 22:32:41 -0400
There are a couple of related but separate issues here.
On the outgoing mail side, it sounds like you are using DNS (direct send
by Exchange to the destination server) rather than a Smarthost (Exchange
relaying through another mail server). As long as the business's public
IP address is static and all the public DNS stuff is setup correctly
(including PTR records), this should work fine. My clients generally
have dynamic IP addresses and relay through a smarthost, which also
works well as long as the hosting service is reliable.
On the incoming mail side, you can use either the POP3 Connector or
(when feasible) direct receive via SMTP. There are pros and cons to
both, and a search of this newsgroup will give you plenty of either.
As to your colleague's views, I respectfully disagree and I think most
SBS consultants will as well. The advantages of having Exchange - and I
am running Exchange in organizations with as few as 2 users - are:
* Centralized e-mail which can be accessed with Outlook and/or Outlook
Web Access and/or Outlook over the Internet (RPC over HTTP) and/or
Remote Desktop and/or mobile devices. Note that these methods are
inclusive, not exclusive. Whatever works best for a client at that
specific moment can be supported, with the same mailbox. I have clients
that use 2 or 3 of these (usually, Outlook, OWA, and RPC over HTTP)
regularly, from multiple PCs to monitor and use a *single* mailbox. "It
just works." Direct POP3 retrieval by Outlook is tied to a specific PC,
unless one does a lot of gyrations.
* Centralized management rather than separately setting up Outlook POP3
accounts for each user.
* Automated backup of the mail as part of the SBS backup. What happens
to the client's Outlook POP3 mail if the PC's hard disk crashes?
* Ability to retrieve even mail which is "permanently" deleted (by
default, Exchange keeps it for 30 days).
* Ability (with permission) to view another user's mailbox or even
delegate capabilities to someone else, such as a manager delegating
mailbox management to an administrative assistant.
* Single-instance storage (although not when you use the POP3
Connector), so that the same message sent to more than one person in the
company is only stored in the Exchange database once.
I have two clients who used to handle mail as your colleage suggests.
Surprisingly, both had SBS (4.5 and 2000) but the consultants who set
them up must have thought as your colleage does. When I upgraded them
to SBS2003 with full Exchange, they thought they had died and gone to
heaven.
-- Owen Williams (SBS MVP)
In article <4C58B07D-AAE7-4D2C-8429-F0B3E2BEB72C@xxxxxxxxxxxxx>,
JohnL@xxxxxxxxxxxxxxxxxxxxxxxxx says...
Hi email gurus,.
I was going to post a query as to why my SMTP outgoing mail was not arriving
at destination. Initially I could see it go into the queues and then was
gone, however did not appear at destination (eg <mymail>@yahoo.com). However
it all started working when I left the site? Propogation through DNS?
Oh well, all's well that ends?
I then had an argument (discussion) with a collegue. His opinion was that
using exchange was an overkill for a small office (3 - 5) users and that I
should setup like a home user. IE an ISP hosted email for each user and let
Outlook do a POP fetch of the email regularly. The ISP is hosting the domain
name web site. He claims that this small business that I am administering
only part time will be better off if the ISP is taking all responsibility for
email assuming I am not always available to them if something should go wrong.
It seems to me that the SMTP connection is pretty clean and simple (baring I
don't understand what happened initally) but what are the pros and cons?
Regards,
John
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