Re: (long shot) feature request

2003-06-03 Thread Richard E. Brown
James:

Thanks for the note.

--- James P. Ashe wrote:
 this one is a long shot, but you can't say i didn't ask...

And we promise not to fix it if we don't know it's broke :-)

 per-map SMTP settings.
 
 why? on a multihomed system youd ideally like to have a map for 
 network 1 send its alerts out network 2 (and vice versa) in case 
 of outages.  maybe a default setting in the main preferences, but 
 the ability to  override in the map preferences. that would 
 make me happy :D
--- end of quote ---

We've wondered whether InterMapper should try three ways to send a message,
falling back as necessary. For example, InterMapper could attempt a SMTP
connection directly with host named in the e-mail address. Failing that, it
would attempt to relay through its configured primary SMTP host, then attempt to
relay through the back-up SMTP host. 

(The current implementation skips the first step, and immediately sends to the
primary server.)

A question for James: Would this three-tiered implementation do what you want? 

And a question for the list: Would this new three-tiered proposal break current
deployments?

Thanks!

Rich Brown[EMAIL PROTECTED]
Dartware, LLC http://www.dartware.com
10 Buck Road, PO Box 130  Telephone: 603-643-2268
Hanover, NH 03755-0130 USAFax: 603-643-2289


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RE: (long shot) feature request

2003-06-03 Thread Ashe, James P.
I'm not quite sure if that would have a solution to my problem or not.
Here's some possible situations we've run into...

As I've stated, my Mac is multihomed, looking at the campus network and
the dorm network which are 2 completely separate physical networks with
different ISPs.  Right now, there is a mail server on the dorm network
which acts as the primary smtp server.  The secondary mail server lies
on the campus network.  This is set up this way because we see the
administrative campus network as priority, and if something happens we
send the mail out the dorm network to increase our % of receiving the
page, and decreasing the % of getting 10,000 calls from users.  If
Anything on the campus network goes down, including the connection to
the internet...  No problem.  Out the dorm network it goes, my phone
vibrates, life is good, users are happy.

Anything on the dorm network goes down...  Maybe not so good.  If the
dorm ISP or core connection go down, Intermapper will successfully
connect to the e-mail server on the dorm network (again, the primary
mail server) but the mail (actually a page to
phonenumber@messaging.nextel.com) can't get to the internet from the
server since the internet connection on the dorm network has failed.
Perhaps SMTP dependency on a device is in order?  Perhaps per map SMTP
settings?  Perhaps a SMTP server on the local machine that is smart
enough to fail-over?  Any other suggestions?  

As for your first scenario of trying to send directly through the mail
server listed in the host address, I don't think nextel will give my
machine relay rights :-D  is that what you were envisioning?  

James P. Ashe
Systems Analyst 2
ETSU Office of Information Technology
[EMAIL PROTECTED]
OIT Help Desk - 423.439.4648


-Original Message-
From: Richard E. Brown [mailto:[EMAIL PROTECTED] 
Sent: Monday, June 02, 2003 9:15 AM
To: [EMAIL PROTECTED]
Subject: Re: (long shot) feature request


James:

Thanks for the note.

--- James P. Ashe wrote:
 this one is a long shot, but you can't say i didn't ask...

And we promise not to fix it if we don't know it's broke :-)

 per-map SMTP settings.
 
 why? on a multihomed system youd ideally like to have a map for
 network 1 send its alerts out network 2 (and vice versa) in case 
 of outages.  maybe a default setting in the main preferences, but 
 the ability to  override in the map preferences. that would 
 make me happy :D
--- end of quote ---

We've wondered whether InterMapper should try three ways to send a
message,
falling back as necessary. For example, InterMapper could attempt a SMTP
connection directly with host named in the e-mail address. Failing that,
it
would attempt to relay through its configured primary SMTP host, then
attempt to
relay through the back-up SMTP host. 

(The current implementation skips the first step, and immediately sends
to the
primary server.)

A question for James: Would this three-tiered implementation do what you
want? 

And a question for the list: Would this new three-tiered proposal break
current
deployments?

Thanks!

Rich Brown[EMAIL PROTECTED]
Dartware, LLC http://www.dartware.com
10 Buck Road, PO Box 130  Telephone: 603-643-2268
Hanover, NH 03755-0130 USAFax: 603-643-2289


List archives: 
http://www.mail-archive.com/intermapper-talk%40list.dartware.com/
To unsubscribe: send email to: [EMAIL PROTECTED]


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To unsubscribe: send email to: [EMAIL PROTECTED]


RE: (long shot) feature request

2003-06-03 Thread Chris Pepper
At 9:37 AM -0400 2003/06/02, Ashe, James P. wrote:

As I've stated, my Mac is multihomed, looking at the campus network and
the dorm network which are 2 completely separate physical networks with
different ISPs.  Right now, there is a mail server on the dorm network
which acts as the primary smtp server.  The secondary mail server lies
on the campus network.  This is set up this way because we see the
administrative campus network as priority, and if something happens we
send the mail out the dorm network to increase our % of receiving the
page, and decreasing the % of getting 10,000 calls from users.  If
Anything on the campus network goes down, including the connection to
the internet...  No problem.  Out the dorm network it goes, my phone
vibrates, life is good, users are happy.
Anything on the dorm network goes down...  Maybe not so good.  If the
dorm ISP or core connection go down, Intermapper will successfully
connect to the e-mail server on the dorm network (again, the primary
mail server) but the mail (actually a page to
phonenumber@messaging.nextel.com) can't get to the internet from the
server since the internet connection on the dorm network has failed.
Perhaps SMTP dependency on a device is in order?  Perhaps per map SMTP
settings?  Perhaps a SMTP server on the local machine that is smart
enough to fail-over?  Any other suggestions?
	Well, in your current configuration, if the dorm network's 
ISP uplink goes down, InterMapper will successfully deliver the 
message to the dorm SMTP server, but the message will be stuck there 
waiting for the uplink (to Nextel) to come back. There's no way for 
InterMapper to use an external SMTP host and know that that host has 
succeeded in its own delivery. You'd need to build an SMTP host into 
InterMapper (or use the deliberately broken one in MOSX or the broken 
one IIS provides), and force it not to deliver to intermediate hosts 
to avoid hang-ups between IM and the *final* destination host (which 
you might not even know).

As for your first scenario of trying to send directly through the mail
server listed in the host address, I don't think nextel will give my
machine relay rights :-D  is that what you were envisioning?
	If you're sending to phonenumber@messaging.nextel.com, 
messaging.nextel.com should accept messages from anywhere on the 
Internet, since it's a local recipient.

	Of course, the SMTP server could be broken, in which case 
you're still SOL.

	To work around a broken SMTP server, you'd need to send 
messages back to IM and test receipt, which is a large substantial 
mail-server-checking problem, and still doesn't address problems 
outside your test loop (coverage to the cellphone/pager)...

	Perhaps IM should have a checkbox for individual email 
recipients to force delivery to the hostname in the email address 
rather than the 'normal' SMTP server. Then you could get a pager for 
someone else on another network entirely, to avoid dependence on 
nextel...

Chris Pepper
--
Chris Pepper:   http://www.reppep.com/~pepper/
Rockefeller University: http://www.rockefeller.edu/

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(long shot) feature request

2003-06-02 Thread James P. Ashe
Title: Message




this one is a long shot, but you can't say i didn't 
ask...
per-map SMTP settings.
why?
on a multihomed system youd ideally like to have a map for 
network 1 
send its alerts out network 2 (and vice versa) in case of 
outages. 
maybe a default setting in the main preferences, but the ability 
to 
override in the map preferences. that would make me happy 
:D

James P. Ashe
Systems Analyst 2
East Tennessee State University