Outgoing email slows (stops) internet

Iâ??m running out of places to look and narrowed it down (I think) to something
not set up correctly in exchange 2000-??-. If I send an email out with an
attachment, the internet slows to a crawl on the intranet until the email is
finished going out. Sometimes for as long as 1 hr depending on how big the
attachment is and how many people it was sent to. My latency jumps up to
1500-1700ms from a normal 20-30ms. Did a speed test at dslreports while it
was sending and it goes down to 300/100 from a Downstream: 3552 Upstream: 384
DSL connection. ISP switched out the DSL router yesterday thinking it might
be that but didnâ??t help. If I send out an email using Outlook Express using a
standard pop account and bypassing exchange, latency only goes up to
200-300ms and the internet is normal. Iâ??m running out of things to try and
was wondering if anyone has any ideal of where else to look.

Thanks
Jason

Sorry for the cross post. Posted in the Exchange 2000 NG but noticed no one
goes there after I posted.

John
Wed Mar 12 14:19:59 CDT 2008

Is this only happening when sending to external recipients? In other words,
if you send the mail with attachment to local user then it arrives within
seconds?

--
John Oliver, Jr
MCSE, MCT, CCNA
Exchange MVP 2008
Microsoft Certified Partner


"J Rhymes" <JRhymes@discussions.microsoft.com> wrote in message
news:58A40DB9-0002-442B-BC87-76F324119D33@microsoft.com...
> I'm running out of places to look and narrowed it down (I think) to
> something
> not set up correctly in exchange 2000-??-. If I send an email out with an
> attachment, the internet slows to a crawl on the intranet until the email
> is
> finished going out. Sometimes for as long as 1 hr depending on how big the
> attachment is and how many people it was sent to. My latency jumps up to
> 1500-1700ms from a normal 20-30ms. Did a speed test at dslreports while it
> was sending and it goes down to 300/100 from a Downstream: 3552 Upstream:
> 384
> DSL connection. ISP switched out the DSL router yesterday thinking it
> might
> be that but didn't help. If I send out an email using Outlook Express
> using a
> standard pop account and bypassing exchange, latency only goes up to
> 200-300ms and the internet is normal. I'm running out of things to try and
> was wondering if anyone has any ideal of where else to look.
>
> Thanks
> Jason
>
> Sorry for the cross post. Posted in the Exchange 2000 NG but noticed no
> one
> goes there after I posted.

Ed
Wed Mar 12 14:21:41 CDT 2008

From that description I would conclude that your connection isn't fast
enough.
--
Ed Crowley
MVP - Exchange
"Protecting the world from PSTs and brick backups!"

"J Rhymes" <JRhymes@discussions.microsoft.com> wrote in message
news:58A40DB9-0002-442B-BC87-76F324119D33@microsoft.com...
> I'm running out of places to look and narrowed it down (I think) to
> something
> not set up correctly in exchange 2000-??-. If I send an email out with an
> attachment, the internet slows to a crawl on the intranet until the email
> is
> finished going out. Sometimes for as long as 1 hr depending on how big the
> attachment is and how many people it was sent to. My latency jumps up to
> 1500-1700ms from a normal 20-30ms. Did a speed test at dslreports while it
> was sending and it goes down to 300/100 from a Downstream: 3552 Upstream:
> 384
> DSL connection. ISP switched out the DSL router yesterday thinking it
> might
> be that but didn't help. If I send out an email using Outlook Express
> using a
> standard pop account and bypassing exchange, latency only goes up to
> 200-300ms and the internet is normal. I'm running out of things to try and
> was wondering if anyone has any ideal of where else to look.
>
> Thanks
> Jason
>
> Sorry for the cross post. Posted in the Exchange 2000 NG but noticed no
> one
> goes there after I posted.

JRhymes
Wed Mar 12 14:30:00 CDT 2008

Yes, internal email is fine. Doesn't mess with the internet at all and gets
there in seconds.


"John Oliver, Jr. [MVP]" wrote:

> Is this only happening when sending to external recipients? In other words,
> if you send the mail with attachment to local user then it arrives within
> seconds?
>
> --
> John Oliver, Jr
> MCSE, MCT, CCNA
> Exchange MVP 2008
> Microsoft Certified Partner
>
>
> "J Rhymes" <JRhymes@discussions.microsoft.com> wrote in message
> news:58A40DB9-0002-442B-BC87-76F324119D33@microsoft.com...
> > I'm running out of places to look and narrowed it down (I think) to
> > something
> > not set up correctly in exchange 2000-??-. If I send an email out with an
> > attachment, the internet slows to a crawl on the intranet until the email
> > is
> > finished going out. Sometimes for as long as 1 hr depending on how big the
> > attachment is and how many people it was sent to. My latency jumps up to
> > 1500-1700ms from a normal 20-30ms. Did a speed test at dslreports while it
> > was sending and it goes down to 300/100 from a Downstream: 3552 Upstream:
> > 384
> > DSL connection. ISP switched out the DSL router yesterday thinking it
> > might
> > be that but didn't help. If I send out an email using Outlook Express
> > using a
> > standard pop account and bypassing exchange, latency only goes up to
> > 200-300ms and the internet is normal. I'm running out of things to try and
> > was wondering if anyone has any ideal of where else to look.
> >
> > Thanks
> > Jason
> >
> > Sorry for the cross post. Posted in the Exchange 2000 NG but noticed no
> > one
> > goes there after I posted.
>
>
>

JRhymes
Wed Mar 12 14:40:39 CDT 2008

Kind of what you would first think. It's a pretty solid business DSL line and
if that was the case, outlook express would knock it out with the same
attachment but it doesn't.
Even uploading files to an external computer doesn't affect it much. I
uploaded a 100mb file this morning to our web server with no problems. Just
the emails going out through exchange knock it out. Very strange. I also
tried switching over to a clean fractional T1 (256/256) just to test on with
the same result. Although latency didnâ??t jump quite as high, it was still
over 1,000ms.



"Ed Crowley [MVP]" wrote:

> From that description I would conclude that your connection isn't fast
> enough.
> --
> Ed Crowley
> MVP - Exchange
> "Protecting the world from PSTs and brick backups!"
>
> "J Rhymes" <JRhymes@discussions.microsoft.com> wrote in message
> news:58A40DB9-0002-442B-BC87-76F324119D33@microsoft.com...
> > I'm running out of places to look and narrowed it down (I think) to
> > something
> > not set up correctly in exchange 2000-??-. If I send an email out with an
> > attachment, the internet slows to a crawl on the intranet until the email
> > is
> > finished going out. Sometimes for as long as 1 hr depending on how big the
> > attachment is and how many people it was sent to. My latency jumps up to
> > 1500-1700ms from a normal 20-30ms. Did a speed test at dslreports while it
> > was sending and it goes down to 300/100 from a Downstream: 3552 Upstream:
> > 384
> > DSL connection. ISP switched out the DSL router yesterday thinking it
> > might
> > be that but didn't help. If I send out an email using Outlook Express
> > using a
> > standard pop account and bypassing exchange, latency only goes up to
> > 200-300ms and the internet is normal. I'm running out of things to try and
> > was wondering if anyone has any ideal of where else to look.
> >
> > Thanks
> > Jason
> >
> > Sorry for the cross post. Posted in the Exchange 2000 NG but noticed no
> > one
> > goes there after I posted.
>
>
>

uaccaboia
Wed Mar 12 18:16:17 CDT 2008

What about limit bandwith for outgoing smtp with QoS ?

"J Rhymes" <JRhymes@discussions.microsoft.com> ha scritto nel messaggio
news:58A40DB9-0002-442B-BC87-76F324119D33@microsoft.com...
> I'm running out of places to look and narrowed it down (I think) to
> something
> not set up correctly in exchange 2000-??-. If I send an email out with an
> attachment, the internet slows to a crawl on the intranet until the email
> is
> finished going out. Sometimes for as long as 1 hr depending on how big the
> attachment is and how many people it was sent to. My latency jumps up to
> 1500-1700ms from a normal 20-30ms. Did a speed test at dslreports while it
> was sending and it goes down to 300/100 from a Downstream: 3552 Upstream:
> 384
> DSL connection. ISP switched out the DSL router yesterday thinking it
> might
> be that but didn't help. If I send out an email using Outlook Express
> using a
> standard pop account and bypassing exchange, latency only goes up to
> 200-300ms and the internet is normal. I'm running out of things to try and
> was wondering if anyone has any ideal of where else to look.
>
> Thanks
> Jason
>
> Sorry for the cross post. Posted in the Exchange 2000 NG but noticed no
> one
> goes there after I posted.

Ed
Wed Mar 12 18:34:41 CDT 2008

Have you looked at a network trace or SMTP protocol logging to see if
anything funny might be going on?
--
Ed Crowley
MVP - Exchange
"Protecting the world from PSTs and brick backups!"

"J Rhymes" <JRhymes@discussions.microsoft.com> wrote in message
news:A4C59D96-8CB9-4716-BA3B-9BF4613C1442@microsoft.com...
> Kind of what you would first think. It's a pretty solid business DSL line
> and
> if that was the case, outlook express would knock it out with the same
> attachment but it doesn't.
> Even uploading files to an external computer doesn't affect it much. I
> uploaded a 100mb file this morning to our web server with no problems.
> Just
> the emails going out through exchange knock it out. Very strange. I also
> tried switching over to a clean fractional T1 (256/256) just to test on
> with
> the same result. Although latency didn't jump quite as high, it was still
> over 1,000ms.
>
>
>
> "Ed Crowley [MVP]" wrote:
>
>> From that description I would conclude that your connection isn't fast
>> enough.
>> --
>> Ed Crowley
>> MVP - Exchange
>> "Protecting the world from PSTs and brick backups!"
>>
>> "J Rhymes" <JRhymes@discussions.microsoft.com> wrote in message
>> news:58A40DB9-0002-442B-BC87-76F324119D33@microsoft.com...
>> > I'm running out of places to look and narrowed it down (I think) to
>> > something
>> > not set up correctly in exchange 2000-??-. If I send an email out with
>> > an
>> > attachment, the internet slows to a crawl on the intranet until the
>> > email
>> > is
>> > finished going out. Sometimes for as long as 1 hr depending on how big
>> > the
>> > attachment is and how many people it was sent to. My latency jumps up
>> > to
>> > 1500-1700ms from a normal 20-30ms. Did a speed test at dslreports while
>> > it
>> > was sending and it goes down to 300/100 from a Downstream: 3552
>> > Upstream:
>> > 384
>> > DSL connection. ISP switched out the DSL router yesterday thinking it
>> > might
>> > be that but didn't help. If I send out an email using Outlook Express
>> > using a
>> > standard pop account and bypassing exchange, latency only goes up to
>> > 200-300ms and the internet is normal. I'm running out of things to try
>> > and
>> > was wondering if anyone has any ideal of where else to look.
>> >
>> > Thanks
>> > Jason
>> >
>> > Sorry for the cross post. Posted in the Exchange 2000 NG but noticed no
>> > one
>> > goes there after I posted.
>>
>>
>>

JRhymes
Wed Mar 12 21:26:00 CDT 2008

The only one that I've played with was Windows SBS built in NETMON but it
really doesn't show me anymore then there is SMTP traffic and it's outbound.
I may not be looking in the right place.


"Ed Crowley [MVP]" wrote:

> Have you looked at a network trace or SMTP protocol logging to see if
> anything funny might be going on?
> --
> Ed Crowley
> MVP - Exchange
> "Protecting the world from PSTs and brick backups!"
>
> "J Rhymes" <JRhymes@discussions.microsoft.com> wrote in message
> news:A4C59D96-8CB9-4716-BA3B-9BF4613C1442@microsoft.com...
> > Kind of what you would first think. It's a pretty solid business DSL line
> > and
> > if that was the case, outlook express would knock it out with the same
> > attachment but it doesn't.
> > Even uploading files to an external computer doesn't affect it much. I
> > uploaded a 100mb file this morning to our web server with no problems.
> > Just
> > the emails going out through exchange knock it out. Very strange. I also
> > tried switching over to a clean fractional T1 (256/256) just to test on
> > with
> > the same result. Although latency didn't jump quite as high, it was still
> > over 1,000ms.
> >
> >
> >
> > "Ed Crowley [MVP]" wrote:
> >
> >> From that description I would conclude that your connection isn't fast
> >> enough.
> >> --
> >> Ed Crowley
> >> MVP - Exchange
> >> "Protecting the world from PSTs and brick backups!"
> >>
> >> "J Rhymes" <JRhymes@discussions.microsoft.com> wrote in message
> >> news:58A40DB9-0002-442B-BC87-76F324119D33@microsoft.com...
> >> > I'm running out of places to look and narrowed it down (I think) to
> >> > something
> >> > not set up correctly in exchange 2000-??-. If I send an email out with
> >> > an
> >> > attachment, the internet slows to a crawl on the intranet until the
> >> > email
> >> > is
> >> > finished going out. Sometimes for as long as 1 hr depending on how big
> >> > the
> >> > attachment is and how many people it was sent to. My latency jumps up
> >> > to
> >> > 1500-1700ms from a normal 20-30ms. Did a speed test at dslreports while
> >> > it
> >> > was sending and it goes down to 300/100 from a Downstream: 3552
> >> > Upstream:
> >> > 384
> >> > DSL connection. ISP switched out the DSL router yesterday thinking it
> >> > might
> >> > be that but didn't help. If I send out an email using Outlook Express
> >> > using a
> >> > standard pop account and bypassing exchange, latency only goes up to
> >> > 200-300ms and the internet is normal. I'm running out of things to try
> >> > and
> >> > was wondering if anyone has any ideal of where else to look.
> >> >
> >> > Thanks
> >> > Jason
> >> >
> >> > Sorry for the cross post. Posted in the Exchange 2000 NG but noticed no
> >> > one
> >> > goes there after I posted.
> >>
> >>
> >>
>
>
>

JRhymes
Wed Mar 12 21:43:00 CDT 2008

Iâ??m at home responding so I canâ??t check my terminology. I have set SMTP rules
and set them to low priority but it doesnâ??t seem to affect anything. Not sure
about the QoS. Iâ??ll have to check exactly where I set it tomorrow. Iâ??ve ran
pretty deep into the trees of the admin panel trying different things. Some
of the settings looked promising but I was unsure of so I left them alone.
I even went as far as buying a dual wan switch and trying to segregate the
SMTP traffic out through our frac T1 leaving internet and VPN service on the
DSL, but had too many problems trying to get that to work and gave up on it.



"uaccaboia" wrote:

> What about limit bandwith for outgoing smtp with QoS ?
>
> "J Rhymes" <JRhymes@discussions.microsoft.com> ha scritto nel messaggio
> news:58A40DB9-0002-442B-BC87-76F324119D33@microsoft.com...
> > I'm running out of places to look and narrowed it down (I think) to
> > something
> > not set up correctly in exchange 2000-??-. If I send an email out with an
> > attachment, the internet slows to a crawl on the intranet until the email
> > is
> > finished going out. Sometimes for as long as 1 hr depending on how big the
> > attachment is and how many people it was sent to. My latency jumps up to
> > 1500-1700ms from a normal 20-30ms. Did a speed test at dslreports while it
> > was sending and it goes down to 300/100 from a Downstream: 3552 Upstream:
> > 384
> > DSL connection. ISP switched out the DSL router yesterday thinking it
> > might
> > be that but didn't help. If I send out an email using Outlook Express
> > using a
> > standard pop account and bypassing exchange, latency only goes up to
> > 200-300ms and the internet is normal. I'm running out of things to try and
> > was wondering if anyone has any ideal of where else to look.
> >
> > Thanks
> > Jason
> >
> > Sorry for the cross post. Posted in the Exchange 2000 NG but noticed no
> > one
> > goes there after I posted.
>
>
>