Hello

From our mail server I can successfully send an email to yahoo.co.uk using
telnet.

The SMTP Service however cannot.  We have hundreds of emails queuing.

Any ideas?

Thanks

David

[ Post a follow-up to this message ]

What do the logs show?

On Wed, 19 Oct 2005 20:57:53 +0100, "David Morgan"
<microsoft_newsgroups.nospam@davidmorgan.me.uk> wrote:

>Hello
>
>From our mail server I can successfully send an email to yahoo.co.uk using
>telnet.
>
>The SMTP Service however cannot.  We have hundreds of emails queuing.
>
>Any ideas?
>
>Thanks
>
>David
>

[ Post a follow-up to this message ]

Hi

I have restarted the SMTP Service numerous times.  Once or twice it worked
and the queues cleared.  This problem has only started happening in the last
72 hours and I am in communication with Yahoo about it although all they
seem to want to talk about is delivery into bulk mail folders.

I should point out that we are ok with mail to yahoo.com and aol.com etc.
We have SPF and rDNS.

I have also run ipconfig /flushdns in case of outdated DNS info but to no
avail.

Thanks for your thoughts.

David


"Paul" <plucido@remove.fnis.com> wrote in message
news:OorVrUP1FHA.2428@tk2msftngp13.phx.gbl...
> David Morgan wrote: 
> There are a bunch of possible reasons.  First and easiest would be a
> reboot of the server or restart of IIS services.  The next step is to look
> in the event log for any information.  Also review your log files. If you
> are not logging, turn it on before you restart IIS.
>
> Restart IIS from the IIS mgmt console, right click on the server, tasks,
> restart.
>
> Paul

[ Post a follow-up to this message ]

What do the logs ever show?

I have yet to see a meaningful/helpful message logged in the event logs for
the SMTP Service ever and we're talking a number of years now.

I have 2000 messages queuing for yahoo.co.uk and only one event logged in
System:

Message delivery to the remote domain 'yahoo.co.uk' failed for the following
reason: The connection was dropped by the remote host.

I can only assume that we are getting connected but something else is
preventing the message from being delivered or finished.  The error above
probably pertains to an invalid user at Yahoo.

I have enabled logging via the IIS configuration.  I will report back here
with output.

Thanks for your input.

David

"PeterD" <peter2@hipson.net> wrote in message
 news:1afdl194kfadqbtfus00m0loaj4svtsqmh@
4ax.com...[vbcol=seagreen]
> What do the logs show?
>
> On Wed, 19 Oct 2005 20:57:53 +0100, "David Morgan"
> <microsoft_newsgroups.nospam@davidmorgan.me.uk> wrote:
> 

[ Post a follow-up to this message ]

On Wed, 19 Oct 2005 23:35:22 +0100, "David Morgan"
<microsoft_newsgroups.nospam@davidmorgan.me.uk> wrote:

>What do the logs ever show?
>
>I have yet to see a meaningful/helpful message logged in the event logs for
>the SMTP Service ever and we're talking a number of years now.
>
>I have 2000 messages queuing for yahoo.co.uk and only one event logged in
>System:
>
>Message delivery to the remote domain 'yahoo.co.uk' failed for the followin
g
>reason: The connection was dropped by the remote host.

Ah, but that's what I wanted to hear! This indicates (to me, at least)
that for some reason yahoo.co.uk has blacklisted your domain, or are
doing a reverse DNS and the returned domain doesn't match the sending
domain.

>
>I can only assume that we are getting connected but something else is
>preventing the message from being delivered or finished.  The error above
>probably pertains to an invalid user at Yahoo.
>
>I have enabled logging via the IIS configuration.  I will report back here
>with output.
>
>Thanks for your input.
>
>David
>

[ Post a follow-up to this message ]

Unfortunately, we are "whitelisted" and have rDNS set-up.  See my later post
in this same NG.

Thanks for your help.


"PeterD" <peter2@hipson.net> wrote in message
 news:es5fl1tqc6mb3dup0a5b645gdekhhtnt8h@
4ax.com...
> On Wed, 19 Oct 2005 23:35:22 +0100, "David Morgan"
> <microsoft_newsgroups.nospam@davidmorgan.me.uk> wrote:
> 
>
> Ah, but that's what I wanted to hear! This indicates (to me, at least)
> that for some reason yahoo.co.uk has blacklisted your domain, or are
> doing a reverse DNS and the returned domain doesn't match the sending
> domain.
> 
>
>

[ Post a follow-up to this message ]