Solved

What happens to incoming emails with dismounted infostore?

Posted on 2013-01-08
4
823 Views
Last Modified: 2013-01-14
We had an Exchange 2007 server crash with a hard shutdown. The information store would not mount and we had to pull from backup due to many 1801 errors. Here are my questions:

The infostore was dismounted but the SMTP service was still running. Will external senders receive an NDR?

Where are those e-mails held while the information store was dismounted? It was dismounted for 9+ hours.

Thanks for all of your help!
0
Comment
Question by:MusicMan440
[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
  • 2
4 Comments
 
LVL 52

Expert Comment

by:Manpreet SIngh Khatra
ID: 38755020
Will external senders receive an NDR?  - Ideally not
Yes they are ideally heald for 24 hrs before a NDR is send but that depends on the Senders server as well

- Rancy
0
 

Author Comment

by:MusicMan440
ID: 38755191
Okay, how about this?

The backup I restored from was on Friday. That was the last backup the customer had. Obviously there are missing e-mails from the weekend. I didn't want to replay the log files because they could be corrupt due to the 1801 errors and potential hardware problems.

Will messages still be sent from Exchange that were queued? The queue doesn't have any e-mails in it. I wasn't sure how sending e-mails out from Exchange was handled when the store was dismounted, then recovered from a previous date and time..
0
 
LVL 16

Accepted Solution

by:
Bruno PACI earned 300 total points
ID: 38755297
Hi,

What did you restore exactly !?? The whole server !??
Is yes it's a pity because you have overwrote the Hub Transport queue and then you have lost undelivered e-mails.

If you restores only the database, all messages that have been received since the the last full backup are lost because you refused to replay logs. So there are not in the restored database and as you give up playing logs you lost them.

Messages that were received while the store was down but the SMTP service was still up (Exchange Transport) were stored in the Transport queue on the Hub Transport server. This queue should have been delivered in the mailboxes as soon as your database came back mounted.
Messages that were sent while the store was down... haha... no message could be sent whil the store was down. These messages were in fact stored in the Outlook outbox and stayed there, on the Outlook client, until the Outlook client is able to reconnect to its mailbox.
Messages that were sent before the database scrash should already been sent outside.

So, you have "only" lost messages that were received after the last backup and BEFORE the database crash.


Have a good day.
0
 
LVL 52

Assisted Solution

by:Manpreet SIngh Khatra
Manpreet SIngh Khatra earned 200 total points
ID: 38755580
To Answer your Question this depends much on the Sender Server details as well as ideally its set to retry for XYZ times or Hours and ideally by deafult its 24 so not much of an emails should be lost if any Sender would receive a NDR.

So not much emails should be lost once on Server Queue but the once you have from Last Restore to what was delivered to the Users

- Rancy
0

Featured Post

Space-Age Communications Transitions to DevOps

ViaSat, a global provider of satellite and wireless communications, securely connects businesses, governments, and organizations to the Internet. Learn how ViaSat’s Network Solutions Engineer, drove the transition from a traditional network support to a DevOps-centric model.

Question has a verified solution.

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

I was prompted to write this article after the recent World-Wide Ransomware outbreak. For years now, System Administrators around the world have used the excuse of "Waiting a Bit" before applying Security Patch Updates. This type of reasoning to me …
Check out this step-by-step guide for using the newly updated Experts Exchange mobile app—released on May 30.
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…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…

726 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