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Delivery Notification: Delivery has been delayed

I am currently running Exchange 2003. There are two users that cannot receive email a user from an another domain (someuser@abc.net). But it seems they can receive email from anywhere else just fine. This what the user (someuser@abc.net) received as a reply when attempting to send an email to the two users:

----- Original Message -----
From: <postmaster@abc.net>
To: <someuser@abc.net>
Sent: Sunday, May 21, 2006 1:40 AM
Subject: Delivery Notification: Delivery has been delayed

> This report relates to a message you sent with the following header
fields:
>
> Message-id:
<14819705.830981148080433574.JavaMail.root@vms071.mailsrvcs.net>
> Date: Fri, 19 May 2006 18:13:53 -0500 (CDT)
> From: Lauren <someuser@abc.net>
> To: user1@mydomain.com
> Subject: email
>
> Your message has been enqueued and undeliverable for 1 day
> to the following recipients:
>
> Recipient address: user1@mydomain.com
> Reason: unable to deliver this message after 1 day
>
>
> Delivery attempt history for your mail:
>
> Sat, 20 May 2006 19:42:46 -0500 (CDT)
> Error writing SMTP packet
>
> Sat, 20 May 2006 11:39:59 -0500 (CDT)
> Error writing SMTP packet
>
> Sat, 20 May 2006 07:37:47 -0500 (CDT)
> Error writing SMTP packet
>
> Sat, 20 May 2006 03:35:37 -0500 (CDT)
> Error writing SMTP packet
>
> Fri, 19 May 2006 23:32:41 -0500 (CDT)
> Error writing SMTP packet
>
> Fri, 19 May 2006 21:28:16 -0500 (CDT)
> Error writing SMTP packet
>
> Fri, 19 May 2006 19:20:16 -0500 (CDT)
> Error writing SMTP packet
>
> Fri, 19 May 2006 18:17:23 -0500 (CDT)
> Error writing SMTP packet
>
> The mail system will continue to try to deliver your message
> for an additional 3 days.
>
>

Sembee

This is a message coming in to your server?

Those aren't Exchange messages, so my instinct is that the problem is at the other end, or a conflict with something they have and something that you have.

Do you have a firewall? If so, is it scanning SMTP traffic?
Anything else scanning SMTP traffic? Antivirus, Antispam etc.

Simon.

geraldonunez

ASKER

Hello Simon,

The message posted is the reply that someuser@abc.net receives when sending an email to the two users in our domain. We have a firewall but it is not scanning SMTP traffic. We currently run GFi Mail Security version 9. I will look into the Antivirus and check if it is scanning SMTP traffic. I will get back with what I can find. Thanks for the help!

geraldonunez

ASKER

Looking into GFi Mail Security I see the following are checked:

*Scan Inbound Emails through SMTP Transport Event Sink
*Scan Outbound Emails through SMTP Transport Event Sink

Should I uncheck these? Would unchecking these options allow the Exchange Server to be vulnerable to viruses?

Thanks again for the help!

Lalo

ASKER CERTIFIED SOLUTION

Sembee

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geraldonunez

ASKER

Thanks for the help! It seems after unchecking those two options the emails went through almost instantly. I will look more into the product and will uninstall/reinstall if necessary. Thanks!

Lalo