Cannot receive mail from particular user

Denis · Joined: 05 Aug 2007 Posts: 11

When one of my internal user sends an e-mail to another internal user, he
does not receive it.

Everything is working fine, means users can send and receive mails normally
(inside and outside).

User A when sends a mail to User B, User C and User D, the mail is being
received by User B and User C. But, User D does not receive it most of the
times. All the users use Outlook. Even there are no such rules in any of
the user's Outlook. It also does not show delivery to the user D in message
tracking of Exchange 2000.

What might be the problem? Or where can I track it?

Archived from group: microsoft>public>exchange2000>misc

Lanwench [MVP - Exchange] · Joined: 05 Aug 2007 Posts: 191

In @microsoft.com,
Denis typed:
> When one of my internal user sends an e-mail to another internal
> user, he does not receive it.
>
> Everything is working fine, means users can send and receive mails
> normally (inside and outside).
>
> User A when sends a mail to User B, User C and User D, the mail is
> being received by User B and User C. But, User D does not receive it
> most of the times. All the users use Outlook. Even there are no
> such rules in any of the user's Outlook. It also does not show
> delivery to the user D in message tracking of Exchange 2000.
>
> What might be the problem? Or where can I track it?

See if you can reproduce this yourself from this mailbox - send a message
just to user D. Make sure the sender doesn't have an incorrect autocomplete
entry in Outlook - that can cause this problem. Use the TO field to make
sure you're getting the right info - select the recipient from the address
book.

Denis · Joined: 05 Aug 2007 Posts: 11

Thanks for your valued reply.

But, that's not the case. I have tried that too. Also, it happens
sometime. Not always. Say when I send 10 mails, then may be 1 mail is not
received by the user D.

Can this happen due to overloaded Exchange Server?
I have 650 Mailboxes hosted on a single server with 2 nos. of Xeon 3GHz
Processor/2GB RAM and SCSI HDDs (RAID 5). Mail activity is very high most of
the time.

Regards,
Denis

"Lanwench [MVP - Exchange]" wrote:

> In @microsoft.com,
> Denis typed:
> > When one of my internal user sends an e-mail to another internal
> > user, he does not receive it.
> >
> > Everything is working fine, means users can send and receive mails
> > normally (inside and outside).
> >
> > User A when sends a mail to User B, User C and User D, the mail is
> > being received by User B and User C. But, User D does not receive it
> > most of the times. All the users use Outlook. Even there are no
> > such rules in any of the user's Outlook. It also does not show
> > delivery to the user D in message tracking of Exchange 2000.
> >
> > What might be the problem? Or where can I track it?
>
> See if you can reproduce this yourself from this mailbox - send a message
> just to user D. Make sure the sender doesn't have an incorrect autocomplete
> entry in Outlook - that can cause this problem. Use the TO field to make
> sure you're getting the right info - select the recipient from the address
> book.
>
>
>

Lanwench [MVP - Exchange] · Joined: 05 Aug 2007 Posts: 191

In @microsoft.com,
Denis typed:
> Thanks for your valued reply.
>
> But, that's not the case. I have tried that too. Also, it happens
> sometime. Not always. Say when I send 10 mails, then may be 1 mail
> is not received by the user D.

Have you used message tracking? (if it isn't enabled, do so, and also enable
subject line logging for it). Have you opened user D's mailbox directly (use
OWA) to see if it gets delivered?
>
> Can this happen due to overloaded Exchange Server?

I wouldn't think so, no.
>
> I have 650 Mailboxes hosted on a single server with 2 nos. of Xeon
> 3GHz Processor/2GB RAM and SCSI HDDs (RAID 5). Mail activity is very
> high most of the time.

You might bump up your RAM, at least....but I can't see how this would
relate to sporadic message delivery failure.
>
>
> Regards,
> Denis
>
>
>
>
>
>
>
>
>
>
> "Lanwench [MVP - Exchange]" wrote:
>
>> In @microsoft.com,
>> Denis typed:
>>> When one of my internal user sends an e-mail to another internal
>>> user, he does not receive it.
>>>
>>> Everything is working fine, means users can send and receive mails
>>> normally (inside and outside).
>>>
>>> User A when sends a mail to User B, User C and User D, the mail is
>>> being received by User B and User C. But, User D does not receive
>>> it most of the times. All the users use Outlook. Even there are no
>>> such rules in any of the user's Outlook. It also does not show
>>> delivery to the user D in message tracking of Exchange 2000.
>>>
>>> What might be the problem? Or where can I track it?
>>
>> See if you can reproduce this yourself from this mailbox - send a
>> message just to user D. Make sure the sender doesn't have an
>> incorrect autocomplete entry in Outlook - that can cause this
>> problem. Use the TO field to make sure you're getting the right info
>> - select the recipient from the address book.

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