Microsoft Exchange 2011 not receiving inbound mails

My Microsoft exchange server 2011 suddenly stops receiving external mails...but can send external mails. it can also send & receive internal mails..

i have restarted the server, restarted exchange transport service but nothing has changed...i still cannot receive external mails...
Oluwafemi BakareAsked:
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Scott CSenior EngineerCommented:
It's Exchange 2010, not Exchange 2011... You're running on SBS 2011 which includes Exchange 2010.

Check your diskspace.  It sounds like backpressure is kicking in.

Backpressure is there to keep a server from crashing due to lack of disk space.

Read this...https://technet.microsoft.com/en-us/library/bb201658(v=exchg.160).aspx
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Scott CSenior EngineerCommented:
To relieve backpressure you must free up disk space...it's the only thing you can do.
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Oluwafemi BakareAuthor Commented:
I do not have any fie document residing on the server other than the roaming profile of some users and the exchange server...please, which file should i delete in particular..I still have 9GB free space...thanks
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Scott CSenior EngineerCommented:
I don't know your system, but if you're down to 9GB, then you are definitely having backpressure issues.

Can you move the pagefile to another drive?

WinDirStat is an excellent program to tell you what is installed and how much.  https://windirstat.net/

See if that can find you some files to either move or delete.
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Scott CSenior EngineerCommented:
I would remote in and offer assistance if I could, but I'm at work and I cannot risk my job.
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harold mcmullennetwork techCommented:
sounds like maybe default receive connector is not working as it should.
has there been any changes made recently?
you should have 2 defaultly created receive connectors:
default  "servername" - from outside world
client "servername" - from other hub transport servers

make sure your default "servername" receive connector has "all available ip addresses" set in scope
make sure you have the following ticked :
under "scope" : "exchange servers", "exchange users" and "legacy exchange servers"
under security: 'tls", and whatever authentication you use there, but probably "int windows auth", exchange auth,
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Oluwafemi BakareAuthor Commented:
scott, thanks for your kind assistance...pls i've done some googling, i still do not know where to locate the page file and what the possible consequences are if i cut out the page file from the server  c drive  all together and save on an external disk
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Scott CSenior EngineerCommented:
@Harold...no that's not it.  He said his free space is down to 9GB and that's about when backpressure kicks in.

You're sending him down a path that isn't going to pan out and will just add to the confusion.  How do I know this?  I was a Tier 3 Exchange Escalation Engineer for Microsoft for 15 months.

Oluwaferni...look through the article I posted on understanding backpressure.  If that still doesn't help you, then you may want to contact someone local who knows Exchange.
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Scott CSenior EngineerCommented:
the pagefile cannot be moved to an external disk.  It would have to be a disk that is installed inside of the server.  USB won't work.

It sounds like you are in over your head and I don't want you to move or delete something that will make matter worse.

I'd remote if I could, but I cannot.
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harold mcmullennetwork techCommented:
sorry, when i started writing my statement, there were no other comments. his comment about 9gb space wasn't posted yet
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Scott CSenior EngineerCommented:
No worries.  

OP...are there any managed solution providers in your area you can contact?  With the information you have I can't see this taking somebody with experience any longer than an hour to resolve.

That is assuming you have other drives on your server that the pagefile and Exchange log files and possibly the transport queue can be moved to.

This may help as well...From <https://technet.microsoft.com/en-us/library/bb125177(v=exchg.150).aspx>
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Scott CSenior EngineerCommented:
Do you have any other drives in your server?  Can any be added?
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harold mcmullennetwork techCommented:
i was just writing that also...check logging to ensure set to reasonable level and/or logged to separate drive
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Oluwafemi BakareAuthor Commented:
@scott, @Harold, Thank you guys..
What if i delete users roaming profile files from the server?
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harold mcmullennetwork techCommented:
dang...how many users would be accessing exchange server?
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Scott CSenior EngineerCommented:
That will free some up, but unless those profiles are huge, it won't make much of a difference.
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Oluwafemi BakareAuthor Commented:
@scott, i can purchase an HDD from a local store here...i just do not  know if the HDD will be automatically added such that the available feee space would increase...or what do you thing
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Scott CSenior EngineerCommented:
Oluwafemi Bakare...I can tell you are in way over your head.  

Tell you what...I just looked at the "Live Consultants".  Contact Will Szymkowski....it looks like he is available to help you and this guy knows his Exchange.  I would say he is even better than myself in several aspects on Exchange.
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Scott CSenior EngineerCommented:
I would rather you contact Will and split the points between us rather than you do damage to your server.

I don't want to offend, but you sound desperate and panicky...this is not the time for you to make a rash decision...Let someone help who will fix the problem.  Will can handle this issue...no worries.
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Larry Struckmeyer MVPCommented:
One last attempt to resolve this easily.  The most frequent offender is the logs.  Update and run the best practice analyzer found on your start menu and see if it tells you which logs and how to fix.  Could be easy -peasy.
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Scott CSenior EngineerCommented:
Look in your Application Event log in Event Viewer...do you see IDs 15004, 15005, 15006, or 15007?

Larry....that's a good point....If the Exchange server isn't being backed up, then the logs aren't being truncated and will devour diskspace.

OB....is your Exchange sever being backed up so that the transaction logs are being purged?

If not, then a full backup of Exchange should take care of your issues.
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Oluwafemi BakareAuthor Commented:
@scott, @Harold, @Larry Thank you..
your counsel is well appreciated and thank you for your time,,,

i will update you as soon as possible
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Larry Struckmeyer MVPCommented:
Can also be the IIS logs.  Just found one with 2 GB of those.  Stopping IIS services and deleting all the logs fixed it.  But the BPA should tell you which ones.  If  you have questions, post back here.

The command to stop IIS servers is:  from an elevated cmd prompt:  iisreset /stop  to start again, iisreset /start or iisreset with no switch.

And btw:  Fix anything else the BPA finds.  A must.
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Scott CSenior EngineerCommented:
I see what you're getting at, but it's only a Band-Aid.  what needs to be done is increase the drive by hundreds of gigs or a few TB.

2 GB in Exchange terms is very small.

I'm thinking the Exchange server has never been properly backed up and all of the space is being consumed by the transaction logs.
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Larry Struckmeyer MVPCommented:
Yep, more space and move Exchange data base off the OS partition (WITH the SBS Wizard in the Console) if that is where it lives.  But he wants/needs to get mail flowing asap.  He can add space and move the database after..

BTW... I remember running SBS on mirrored 9 GB 68 or 80 Pin SCSI drives.  We had to change some to RAID 5 to increase the data partitions from 7 GB to 16 GB (3X9 = 27 -1-18-2-16).  Seemed like oceans of space then.  But each one of those drives was 750 USD.
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Oluwafemi BakareAuthor Commented:
Scott c, hw are you today

Here is a list of what i've done on the issue above..

1. I took ownership of the redirected folders
2. Copied the redirected folder files to an external HDD
3. Discovered that the redirected folder files took up to 1/2 of my entire disk space
4. Stopped sharing the redirected folder by - Went to the Windows SBS console -   share folders and websites..then i clicked on stopped sharing

But here is the problem
1. Users cannot create files or folders on their desktop/system  as the error reads " not enough quota is available to process this command'
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Scott CSenior EngineerCommented:
I'm doing fine.  How are you?

That's probably because the redirected folders are no longer there.

But, since the space has been freed up, is mail now flowing again?

You really need to add more space/drives to your system, and then use the SBS console to move the Exchange DB to that new drive.
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Oluwafemi BakareAuthor Commented:
Mails are dropping now...though, i still have the redirected folder in its original location...all i did FOR NOW is to delete the files in two(2) accounts...that gave me some extra space on my drive...so mails started dropping automatically...

but here is the problem,
1. from the SBS console - shared folder and website -  ( I cannot see redirected folder as part of the list anymore
2. Users cannot create folders on their desktop, my documents and any other location on their system apart from the section of system that was not redirected before now.


As far as i remember, I went to SBS Console - shared folder and website - and stopped sharing the redirected folder...

but Its as if the redirected folder is still in control of all the locations it has redirected before i stopped sharing it
Immediately i did that, i began to notice this problems described above

Pls help..how do  i resolve this problem because i feel
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Oluwafemi BakareAuthor Commented:
I took ownership of the redirected folder, moved it to an external drive and free up some space by deleting just one user files..then my mails started dropping



Now, here is the problem...

I went to SBS console - shared folder & Websites - then i stopped sharing redirected folders....soon, i noticed that all the files on users desktop, my documents went blank, they cant create now folders or files on their desktop/documents, and on the shared folder & website tab  - from the SBS Console,the redirected folder is no longer present on the list... dont know what to do...pls help
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Oluwafemi BakareAuthor Commented:
Before now, my sbs console page - shared folder & website looked like this
2438.clip_image006_thumb_5E6F0095.jpgbut now, the redirected folder is no more on the list
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Scott CSenior EngineerCommented:
This is why I strongly suggested you get some help.  I don't have a lot of experience with redirected folders.

You may want to open another question to address this issue.

I suggested finding a local professional and also using the Live Consultants on this site.  I even recommended one.

You didn't take my advice and now you are in a situation where there could be data loss and users can't get to their information.

I suggested freeing up space by proper and supported methods.  You didn't take that advice.

At this point you need to STOP and get someone who has the experience and can get things straightened out.
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Larry Struckmeyer MVPCommented:
Yep... things have progressed to the point where you should get help.   Anything more that you do will just dig a deeper hole.

Just a FYI... two things about redirected folders.  First, there is a wizard to either move them or stop redirection.  Either would have been better than what you did.  Move, as Scott has repeatedly pointed out, requires more space.  Stop redirection reversed the GPO that causes redirection and moves all the files and folders back to the users desktop system.  Lastly, you can use File Resource Server to stop users from copying their personal set of music and videos to the server.
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Delphineous SilverwingGood Ol' GeekCommented:
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I have recommended this question be closed as follows:

Accept: Scott C (https:#a42073482)

If you feel this question should be closed differently, post an objection and the moderators will review all objections and close it as they feel fit. If no one objects, this question will be closed automatically the way described above.

Delphineous
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