Solved

Mail not getting delivered to CC'd accounts

Posted on 2009-04-10
7
1,012 Views
Last Modified: 2012-05-06
I've got a few situations where users who were on the CC list did not get the email sent from outside the comapny. Everyone on the TO list did receive it.

I also used the Message Tracking Center and was able to confirm that the CC recipients did not get the mail, all addresses were correct

Has anyone seen this before?
Using Echanger Server 2003
0
Comment
Question by:BrianFord
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
  • 2
7 Comments
 
LVL 10

Expert Comment

by:Rudram
ID: 24118762
* Any NDR's for those users??

* Did you try sending the email to those users who were in CC, by keeping them in the TO field for testing and see if at all the email gets delivered

* Try sending the email keeping the request for delivery reciept, while sending the users in CC, so that we could know whether the email is relayed or getting stuck somewhere

Good Luck (^_^)
0
 

Author Comment

by:BrianFord
ID: 24118840
Hi Rudram
There were no NDR's for the message.
These are messages coming into our mail server from customers, so it's a bit difficult to reproduce
It doesn't happen all the time either which makes it even harder to track down, I doubt there's an easy answer to this but thought I'd throw it out there and see if ayone else has come accross this situation
0
 
LVL 10

Expert Comment

by:Rudram
ID: 24119526
* How about this one as quoted earlier

"Did you try sending the email to those users who were in CC, by keeping them in the TO field for testing and see if at all the email gets delivered"...

* If you could arrange someone at the customers end to try out this option, possibly we might hit something

* Also secondly, when you say this doesn't happend always, then one thing i could think of is that, possibly the sender is sending the emails by selecting the email address in cache (might be a wrong email id)

(^_^)
0
Office 365 Training for IT Pros

Learn how to provision Office 365 tenants, synchronize your on-premise Active Directory, and implement Single Sign-On.

 
LVL 65

Expert Comment

by:Mestha
ID: 24119861
If message tracking doesn't show the message being delivered, then it was dropped before it hit Exchange. Does your email come in directly, or does it come through another server/service?

Simon.
0
 

Author Comment

by:BrianFord
ID: 24119885
message tracking shows the message being delivered to the 'TO' recipients so I know it made it to the server
 
We do have a an external spam filter service, but that I've checked there also and nothing was blocked (as far as I can see)
0
 
LVL 65

Accepted Solution

by:
Mestha earned 500 total points
ID: 24119927
You have no way of knowing if the complete was message was delivered. What appears in the message headers cannot be relied upon. Let me rephrase what I have said above - if message tracking does not show any trace of the messages being delivered to the CC recipients, then the message did not arrive with the CC recipients in the delivery part of the message, just in the CC line - they are actually two different things.

If you are using a third party service, can they show you who the message was destined for?
Is there any pattern to the messages that fail? Is it all CC messages?

Simon.
0
 

Author Comment

by:BrianFord
ID: 24120008
This has happened 3 times to my knowledge over the past week, one recipient was a CC of each of these. Obviously that can't be a coincidence but the fact none of the other CC's got them either is just very strange.
I will look further at our external service and see if they can report anything
Thanks for your help
0

Featured Post

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Utilizing an array to gracefully append to a list of EmailAddresses
MS Outlook is a world-class email client application that is mainly used for e-communication globally.  In this article, we will discuss the basic idea about MS Outlook, its advanced features, and types of MS Outlook File formats.
In this video we show how to create a Distribution Group in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >>…
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…

740 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question