Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

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We are using Exchange 2007 on our Outlook 2007 uses a .ost file.  Yesterday I seem to have deleted a "Task" from my Outlook. That Task has a ton of important info.  Would that Task be backed up in our Backup on the server that backs up Exchange?  Or, is that Task just gone and not retrievable?
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We are having intermittent issues in an Exchange 2010 environment where delegates are updating calendars they have received delegation rights to by the calendar does not get updated or duplicate items appear.
Hi Experts,

I have a question regarding licenses for Exchange 2019.
When I use the new Server Exchange 2019 on a windows Server 2019, do I also need the new Windows CALs for 2019 ?

Do you have any refernece article from MS ?
Dear Experts

I am hoping someone can assist me with the following issue. I have SPF and DKIM configured on my domain, which appear to be setup correctly but when I examine the message header of an email I sent I see the following entry "None ( does not designate permitted sender hosts)"

Just to add I am using Exclaimer for signature management.

Please can someone examine the header below and advised if I configured something incorrectly.

Received: by 2002:a4f:c15:0:0:0:0:0 with SMTP id 21csp930979ivm;
        Wed, 21 Aug 2019 06:30:56 -0700 (PDT)
X-Google-Smtp-Source: APXvYqyk6Zvuz4Zzp1WUwoJQlz3EsF/mENO5B7uNOXkWXKiQUJ9CmIl25//eS3gDvDa/NqaFIZJg
X-Received: by 2002:a17:906:158c:: with SMTP id k12mr31626198ejd.83.1566394255976;
        Wed, 21 Aug 2019 06:30:55 -0700 (PDT)
ARC-Seal: i=2; a=rsa-sha256; t=1566394255; cv=pass;; s=arc-20160816;
ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed;; s=arc-20160816;
Whenever I am trying to make any updates or changes in the exchange admin center 2013 it throws an error 'something went wrong please try again later'
I tried to update to the latest CU
Checked the exchange health logs and updated the windows server on latest patch
Checked my IIS server site binding everything looks good. But still the same error.
It has become a technical road block for me and impacting my production kindly help
I created a E-discovery search and selected ALL mailboxes via EMC. When I run the search it says I have too many mailboxes. i know the default limit is 5000 for on-prem, we only have 1500 mailboxes.

Any ideas?
Exchange 2010 times out (Primary Target IP responded with:"421 4.4.1 Connection timed out.") when sending to military emails. Restarting these directly through the Exchange Admin Console eventually works, but I can't babysit the server.

some stuff:
Send connector address space is just * with cost set to zero so all mail gets the same priority. Have tried creating a custom send connector with same result.
Set inactivity timeout on connector to 15 mins.
Restarted Exchange Transport and other relevant services as expected after any config changes.
nslookup from server resolves DNS (MX records) for recipient(s)
flushed dns
Talked with someone inside a military base. His suggestion was to try and send through OWA. Sent him an email through Outlook/Exchange and another through OWA. Both are sitting in the outgoing queue waiting to try, then timeout again.

These are set to retry every 10 minutes. If left alone, they hang in the queue, send NDRs to my boss and usually fail in 48 hours. Once she gets an NDR, I get a message to do something and restarting (just right-click "Retry") eventually gets them sent though it may take one or ten tries. I welcome another set of eyes. This has been the norm for about 6 weeks and nothing I can think of changed on our end. Thanks! :)
I'm on Office 365 Outlook and my domain hosted by GoDaddy.  Not sure that comes into play though.

I have multiple accounts in my Outlook email client.  All of a sudden out of nowhere about a week ago, when I delete an email in one of the mailboxes, nothing happens.  It just stays there.   If I click out of the mailbox and back into the mailbox it's gone.  It used to just delete right on the spot.

All my other accounts - Comcast, Hotmail etc. are deleting just fine as I click the delete button.  If I use the 'delete' key on keyboard nothing happens as well.

So something happened to this one account and I can't figure out how to fix it.

Any help is much appreciated!!!
We have a single windows 2012 R2 Host server running 2 Hyperv servers. One is our file server / domain controller running AD and DNS, the other is an Exchange server 2016.

We have a single remote worker that requires access to a shared folder on our file server. He is fully remote working from different sites using many different wifi connections.

What is the easiest way to provide access for this remote connection to the required shared folder, baring in mind he does not have a workstation to remote into on the local network.

He does use Outlook 2016 and has full access to all of his emails, so does have a local account in AD.

Any advice very much appreciated.

Many thanks
Error when running Hybrid assistant from Exchange 2013 CU 6

Se produjo el error ‎'Error al ejecutar la subtarea CheckPrereqs: Comprobar requisitos previos del inquilino Deserialization fails due to one SerializationException.

Must I upgrade servers? Can I do it from CU 6 to 21/22 directly?

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Hi expert,

I was wondering how to create alias email for exchange 2016 server?

Existing we have alias email (an email address that doesn't have mailbox), and it ties to primary mailbox

All email send to this alias email will redirect the email to the primary mailbox and then duplicate to other user mailbox.

How to do the same in exchange 2016 server?

Is creating mail contact plus adding mail flow rule in EMC is the only way?

Please advise.

I have an Exchange 2016 DAG setup with 2 servers having the "Content index state" failed and suspended.
Actually on server1 it is failed, and on server2 it is suspended.
Using Exchange powershell commands to catalog the DB did not work most likely because no valid index is available.

What should I do to fix this?
We got quite a bit of phishing/spamming lately so my IT support colleague has recommendation below:
for your inputs/views if the recommendation below is good or any other alternative best practices out there:
We don't have Proofpoint or email security gateway.

"Note that we should keep the Exchange Online rule/filter as empty as possible as rules filtering affects performance on the Exchange Online; every rule/filter is processed on every single email individually, delaying email delivery eventually.

Recommendation is to perform the blocking at our Exchange Online first (for faster turnaround) and highlight the phishing/spamming source to our host (ie MS team supporting O365) and allow them to take the appropriate actions at their end as ultimately, the RBL/DNSBL relies on the origin/host backend infrastructure.

After acknowledgement from the origin/host on the actions taken, we then remove the rule/filter from our Exchange Online"
Hi - Spammed user in our system is being trapped frequently. by external email systems flagged as junk
Here is the rub - The user has a display name with a special character umlaut double dot..

the display name has this character  in one letter. - Id like to understand where the display name is analyzed by an email system if at all. using what mechanism - her email address does not contain the special character. so her display name is different than her email address - hos does email system work to check this - Is the only option to remove it from her display name - its a o365 exchange online user.

I'm trying to install a Custom add-in in Outlook 2016.  I've set up the add-in under Office 365 Exchange Admin, no problem there, but I'm not getting the option for Custom Add-ins under Outlook Store, I only get Store Add-ins & Admin-managed Add-ins.  I'm thinking its some kind of permissions issue but that's as far as I get.  Any suggestions?
Cannot get Exchange 2007 Uninstalled from SBS2008 Server
Server 2016 running Exchange 2016 CU9 currently. CU12 update is scheduled for this week.

We have IBM Maas360 for our mobile device, MDM. To get email notifications to work in a sandboxed email environment with Maas360, you have to run their Cloud Extender software. This software requires access to Exchange Server/Powershell. Of course, to give the service account access to that, I had to add the account to Organization Management group on exchange. It fails to detect the URL, nor can it pull mailboxes.

If I run this to test auth:  $session = New-PSSession -Configuration Microsoft.Exchange -ConnectionUri Https:// -Credential $UserCredential

New-PSSession : [] Connecting to remote server failed with the following error
message :
3:59:33 AM] Access Denied For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:12
+ $session = New-PSSession -Configuration Microsoft.Exchange -Connectio ...
+            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotin
    + FullyQualifiedErrorId : -2144108477,PSSessionOpenFailed

In IIS for Exchange, the default …
Let say i have an exist email address A that send alert to few administrator about server/system health status.

Do i need to create mailbox for this email address? or just the mailbox contact + mailflow rules would be sufficient enough?

Please advise.

How to determine if an email account is sending phishing emails internally?
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exchange 2013
A user has send email to B user but B user got same email but not from A user name got from C user name and his C user email and there is no delegation or policy set on either of these mailbox.

so what is the problem? and how to solve this issue.
resource user email account want access to send email to groups email account so that each members in the group recieve mail from resource  user email account.

Please let me know how to make policy or rules


A = group user email id (x,y,and z are members of A group)
B= resource user email id

B wants to send email to A group .. so that all users in the group A will get emails from B
using 2013 exchange server.. scenario is
a and b user is from my company. and c is outsider (
b wants when any emails comes from c to his email that particular c email ( redirect to a user.

please let me know how to make rules for above in exchange 2013
Exchange 2013 delete deleted items , permanently. via power shell
My office has been using Exchange to run our email system but a month ago we switched to our own domain and moved our email system to that domain.

We're using Outlook as a client.

Meanwhile I had not cancelled the Exchange subscription and now we're getting 2 separate and unique sets of emails to the same single email address.

It seems that anyone who replies to the "mail on the old server" will have their messages routed to the "old mail server" inbox. And anyone who replies to the "mail on the new server" will go to the "new mail server" inbox.

1. If I cancel the (old) Exchange subscription, will "all NEW replies to the mail on the old server" be automatically routed to the "new mail server"?

2. What is the most efficient method to combine the two sets of mail? Is there a software or specific way to bring the "original server mail" to combine with the "new server".  I don't want to risk deleting or overwriting a bunch of old mail.

Thanks in advance for any advice!
Exchange 2010 Error when user access owa it happens to certain users






Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.