RE: Some mails are sticking in the outbound queue

  • From: "Will Taborda" <wtaborda@xxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 15 Jan 2004 12:31:45 -0500

Instead of deleting the message, retry the delivery.  Your relay server
may have reached its max number of connections or is too busy.  



Also try telnet'ing to that box (port 25) and test sending a message...
This might give you a better clue as to what is causing the connector to
not reach that server in a timely fashion.





From: Chris Wall [mailto:Chris.Wall@xxxxxxxxxxxxxxxxxxx] 
Sent: Thursday, January 15, 2004 11:45 AM
To: [ExchangeList]
Subject: [exchangelist] Some mails are sticking in the outbound queue

Hello all,


Basic Setup info (for outgoing mail)

    running Exchange 5.5 on Win2K.

    I have an internal Bridgehead server that is setup to forward all
mail to a GFI MailEssentials\Security Gateway(via IP) box for SPAM\Virus

    The GFI software then sends the mail using SMTP in IIS



   Our systems send on average 40,000 e-mails per day.  Every day, at
various times, I will look at my Performance Monitors for the queued
outbound messages on the internal Exchange 5.5 bridgehead server.  About
twice a day, I will notice that the queue will show one message stuck in
queue.  If I let it sit there for about an hour, about 10 to 15 e-mails
will queue up behind the other mail.  Keep in mind, that our
organization is still able to send and receive mail through this very
same server(except for these random few messages that are queueing).


   When I look in the outbound queue in the Exchange Administrator then
click on the message itself, the details screen appears.  In the
Recipients field it lists the destination address followed by [Host


   If I delete the first message (by time submitted) the remaining
queued messages are sent.


My questions are:

1.  what could be making mails queue up in the Exchange IMC if it is
configured to send all e-mails to the GFI gateway server for delivery?

2.  what would cause the random few messages to queue up behind this
message even though 99% of e-mails are flowing as they are supposed to?

3.  why would the Exchange IMC find the Host Unreachable since it is not
setup to send mail other than directly to the GFI gateway IP Address?


Weird issue...


Thanks for any ideas.


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