Re: frequncy of email send / receive
From: Al Christoph (ac2_at_too.net)
Date: 09/24/04
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Date: Fri, 24 Sep 2004 19:51:52 -0400
I live mainly in the outlook express world. I have NEVER understood that
SMTP mail goes directly to the recipient. The way I understand that it works
is
my email program -> ???? -> A server at My ISP -> SMTP ??? -> Perhaps lots
of servers -> A server at your ISP -> POP3 or IMAP -> your Email program.
I'm not sure where SMTP belongs. I guess I had thought that it was how mail
got from my ISP to your ISP. I thought that what had set the modern malware
apart is that they now included their own SMTP servers so that they could
bypass the one at My ISP.
My research came up with this definition:
http://www.webopedia.com/TERM/S/SMTP.html
Short for Simple Mail Transfer Protocol, a protocol for sending e-mail
messages between servers. Most e-mail systems that send mail over the
Internet use SMTP to send messages from one server to another; the messages
can then be retrieved with an e-mail client using either POP or IMAP.
It goes on to say
In addition, SMTP is generally used to send messages from a mail client to a
mail server.
This double use may be the source of my confusion.
However, I definitely disagree with your statements about skipping ISP. One
needs the details of the environment and especially the email address to
know whether you can do it.
Here is how I have one situation hooked up that skips ISP in one direction
only.
Outlook 2003 -> Exchange Server 2003 -> Recipients ISP -> POP3 or IMAP ->
User's Email program
The reply though is
User's Email Program-> SMTP -> User's ISP ->SMTP -> My ISP-> Exchange Server
2003 -> Outlook 2003.
Alternatively like at the moment when i'm haveing troubles getting Exchange
Server to barf out its cache of email i can do
User's Email Program-> SMTP -> User's ISP ->SMTP -> My ISP-> POP3 -> Outlook
Express OR Outlook
The reason for this is that I'm still using my very first email address /
isp and it is hooked into the POP3 portion of exchange server. The email
addresses associated with my web site domain names go through the web host
servers.
The external url for my SBS network - provided as a sub net through
dynip.org - is probably not working with my Exchange Server because 1) I
don't have a port configured on the router for it to get that far 2) I don't
have SBS configured to hack it. I'm not sure that the dynip.org URL is even
configured in the SBS server. If i did make this work then my email address
would be al@fake subdomain name.ath.cx
My assumption is that with appropriate configuration one could do
My Outlook 2003 <-> My Exchange Server 2003 <-> SMTP <-> Your Exchange
Server 2003 <-> Your Outlook 2003
This would leave ISP servers out the picture entirely, though we would still
walse our packets through there Internet switching hardware.
All this goes to say that we need to be very careful and get all the details
in trying to understand how a specific situation goes together.
Reegards,
Al
"Javier Gomez [SBS MVP]" <javier_gomez@remove.this.engineer.com> wrote in
message news:eGuC5%23ioEHA.2864@TK2MSFTNGP12.phx.gbl...
> Sorry. Let me explain it with more details...
>
> POP3 is a retreive mail protocol in this case your domain mail is hosted
> at your ISP. The POP3 connector goes to the ISP and retrieves your mail
> and then distributes it inside Exchange.
>
> SMTP is really the email "standard" (you use it already to send mail) in
> this case the mail comes directly to you. Your ISP doesn't work as an
> intermediary and mail will be in real time. You will also have more
> control over spam (you could implement blacklists, AD filtering, etc.).
> Changing to SMTP is not very difficult (even easier if you have a static
> IP):
> http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&c2coff=1&selm=OktqRUm%24DHA.2012%40TK2MSFTNGP11.phx.gbl
>
> --
> Javier [SBS MVP]
>
> << SBS ROCKS !!! >>
>
> "Al Christoph" <ac2@too.net> wrote in message
> news:O1BAlzioEHA.2304@TK2MSFTNGP14.phx.gbl...
>> Pleaase follow up on your "Change to SMTP" statement. I'm afraid it
>> doesn't make sense to me. I want the POP3 in Exchange to connect every 5
>> minutes which I understand takes a third party product. Oh well.
>>
>> I could let Outlook or Outlook Express connect directly to the world, but
>> I would not call this "Change to SMTP".
>>
>> So please some more info.
>>
>> Regards,
>> Al
>>
>> "Javier Gomez [SBS MVP]" <javier_gomez@remove.this.engineer.com> wrote in
>> message news:u7DxElioEHA.1800@TK2MSFTNGP15.phx.gbl...
>>> You can also change to SMTP and you will receive mail in real time.
>>>
>>> BTW-> Sending is always done immediately.
>>>
>>> --
>>> Javier [SBS MVP]
>>>
>>> << SBS ROCKS !!! >>
>>>
>>> "Adam Rippon" <adam.rippon@sydneytech.com.au> wrote in message
>>> news:ObFUCehoEHA.2684@TK2MSFTNGP11.phx.gbl...
>>>> min interval for pop3 connector is 15mins. if you want a shorter
>>>> interval then you will need a 3rd party app like pop beamer etc.
>>>>
>>>> "Neil Jarman" <neil@tNOiSPAMvPLEASEy.co.uk> wrote in message
>>>> news:cj0kqj$7hj$1$8300dec7@news.demon.co.uk...
>>>>> Hi,
>>>>>
>>>>> Is it possible to increase the frequency of the emamil collection
>>>>> beyond 15
>>>>> minutes?
>>>>>
>>>>> I can see how, with a dail up connection, this might be sufficient,
>>>>> but
>>>>> surely these days every 5 mins (or less) is better?
>>>>>
>>>>> Many thanks
>>>>>
>>>>> NEIL
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
- Next message: Jeff L: "Re: SBS rpc proxy over https issue"
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- In reply to: Javier Gomez [SBS MVP]: "Re: frequncy of email send / receive"
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