Questions tagged [exchange]

Questions about any version of Microsoft Exchange Server or Exchange Online, Microsoft's email and unified communications server product. Because of tight integration with other systems, related questions may overlap with Active Directory, Office 365, and Skype for Business (aka Lync Server or Office Communications Server). Questions about Microsoft Outlook may be a gray area, with Super User as an alternative site to ask on.

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Powershell Where-Object Not Filtering Expanded Property

I am trying to get a list of all email addresses that we have registered in our on-prem Exchange but I want to exclude all of the X400 type addresses. I have tried all of the following commands: Get-...
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0 votes
2 answers
34 views

office 365 Admin: Delegate a mailbox account (Full access) to all other mailboxes by default

Hi In office 365 Admin (Exchange) Is there a way to delegate one mailbox account which will automatically becomes as a delegate to all other accounts, even up on adding a new user in the future? ...
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2 votes
1 answer
50 views

Dynamic Mail Enabled Security Groups are being converted to Dynamic Distribution Lists

Problem: the dynamic mail-enabled security groups (DMESG) I create in EAC are being automatically converted to Dynamic distribution lists (DDL) instead. Use Case: I am attempting to give membership ...
0 votes
2 answers
53 views

MailboxAutoReplyConfiguration not applying to alias SMTP addresses

We have a department that requires a Shared Mailbox. Previously there were multiple Public Folders that were setup for this work. Because they want to Share, Send As, & send an Auto-reply from the ...
1 vote
1 answer
48 views

Exchange Online and on-prem AD

A few years ago, we moved all of our on-prem Exchange 2010 users to Exchange Online using a full hybrid migration. When have no on-prem Exchange servers anymore. Many of the changes we make to ...
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-1 votes
1 answer
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Exchange 2016 - hostnames of client computers

Is it possible to find out the names of computers that connect to the mail server? Clients work through Outlook and the web interface.
0 votes
1 answer
73 views

Publishing Exchange Server public IP address in a hybrid Exchange setup?

I'm currently using the Hybrid Exchange Online and Exchange Server OnPremise setup. I have included the IP addresses of all my Exchange Servers in the below TXT record, I wonder if it is really ...
0 votes
4 answers
126 views

How to grant access to the Microsoft 365 Admin Center to limited Exchange Online administrators?

Related to this: Exchange Online RBAC - How to limit the read scope of a management role?. We need to allow some administrators to manage only a subset of all mailboxes in Exchange Online; we achieved ...
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Exchange Online RBAC - How to limit the read scope of a management role?

Environment: Exchange Online (Microsoft 365). We need to allow some administrators to manage only a subset of all mailboxes. The mailboxes can be selected using a recipient filter, so this can be ...
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1 vote
1 answer
30 views

Move Office 365 data to new datacenter

I'm from UAE, we're running Office 365 and while creating the tenant I selected the Europe region because at that time the United Arab Emirates data location was not available, now Microsft has ...
2 votes
1 answer
496 views

Domain Upgrade from 2012R2 to 2019 Exchange Compatibility

According to Microsoft, Exchange 2013 (highest CU) isn't compatible with a domain controller level of 2019. At least if I'm reading this matrix correctly: https://docs.microsoft.com/en-us/Exchange/...
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1 vote
3 answers
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Exchange 2016 CU23 giving error "upgrade the discovery mailboxes to R5 version"

We have a hybrid 2016 Exchange setup that needs cumulative update 23. I have been stuck on this same error for some time now. In my research I have found that the issue has to do with needing the ...
0 votes
1 answer
52 views

SMTP hub or redirector, is this possible?

Situation: I need to be able to set one SMTP server set of details into some software that sends out emails. However, the software sends emails from many different sender domains, all hosted on ...
0 votes
1 answer
1k views

error 400 4.4 7 message delayed, Emails are bouncing back due to delivery delay

I am facing some issue with my exchange server 2013. when any user sent email to other domain ( inside our domain emails are delivering properly. ) , email is bouncing back due to delivery delay issue....
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1 vote
0 answers
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How to Fix Microsoft Exchange incoming emails always failing with DKIM bodyhash mismatch

I am noticing on our servers that since we set DKIM to reject failures on Exim (v4.95) that a LOT of genuine emails are being rejected. Looking at the Exim rejectlogs we see that persistantly these ...
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0 votes
2 answers
40 views

How to view Exchange Server mail flow and other reports?

When I request a report in the Exchange Admin Center (on-line), it says it will email me the report. But, the reason I am requesting a report is that email is not working! Is there a way to view the ...
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1 vote
3 answers
244 views

Microsoft 365/Exchange Online - Outlook rule "Have server reply using message..." not working when recipient is on exchange online

I have a user that wants an automatic reply being sent back only to certain people (outside the org) with his outlook client. I have managed to configure the outlook rule "have server reply using ...
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1 vote
1 answer
42 views

Email disappearance on Exchange

I have an issue with the disappearance of emails, from the particular mailbox. I have one mailbox and it has a security group on it. Emails disappear when it is being sent from internal users usually....
0 votes
1 answer
807 views

Error sending email with Office 365

My company has Office 365. We use account for send email (SMTP/SSL) https://www.gmass.co/blog/office365-smtp/#office We get error similar like this, but using Exchange Online https://docs.microsoft....
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1 answer
203 views

Exchange DAG seeding operation fails with I/O error

we are getting below error on some of our database wheh we try to create/update a database copy: The seeding operation failed. Error: An error occurred while performing the seed operation. Error: An ...
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1 answer
52 views

Exchange server via TailScale (Wireguard) and creating valid certificates

Here is the scenario. Exchange server runs on a lan. Clients interact with the server via ActiveSync over HTTPs connections served by IIS. IIS is using a cert with SANs that are appropriate for the ...
0 votes
1 answer
118 views

Strange Exchange send-connector behaviour

Can anyone explain this? Two Exchange servers, EX1 (2010, yes, I know) and EX2 (2016). Both are in the same IP subnet. A send connector on EX2 with a scope for 'domain.com' routing through a ...
0 votes
0 answers
564 views

Exchange Online: Configure Room Finder in Outlook

In Exchange Online, you have the ability to set booking delegates on room mailboxes. You can then also either set to auto accept meetings from only these people or have them approve each meeting ...
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0 votes
1 answer
34 views

Antispam Exchange Online Permission Error

We have Office 365 Accounts and also an Microsoft hostet Exchange online Server. Normaly i could manage my antispam Rules and Policys in the Exchange Admin Center. A few months ago there was the new ...
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-1 votes
2 answers
560 views

How to send an email with openssl and Microsoft Exchange Online?

With Microsoft disabling basic auth in Exchange Online, I set out to add support Modern Authentication in our application. Our app sends basic email alerts. Currently we use SMTP basic auth or open ...
0 votes
2 answers
65 views

Exchange 2016 - new Databases and Migration

We are running Exchange 2016, 14 Databases currently running on drive letters. We want to move to mount points, and as part of this, create new DBs and migrate all mailboxes (as this will also clear ...
1 vote
1 answer
79 views

Exchange 2019 refusing attachments within permitted size

I have external users (different mail host) trying to send messages to internal users on our Exchange 2019 server. The attachments are large (7MB-10MB before Base64 encoding), and the senders are ...
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1 answer
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Exchange Hybrid Intermittently giving NDRs

New year, looks like a pretty active site. My company has a Hybrid config in place that cannot be removed at the moment. Since the 22/04 we have been having problems that certain domains ...
0 votes
1 answer
305 views

Exchange Server Autodiscover external URL

All. I am nearing the completion of the setup of our Exchange Server. The process has been a challenge, but I have enjoyed learning new things. What I am working on now is setting up the autodiscover. ...
-1 votes
2 answers
82 views

installing SSL on 2 exchange servers

I have 2 exchange servers run for one email service, and I need to renew the SSL certificate. Do I need to issue 2 SSL, or one is enough? If one is enough how can I replicate it between them?
0 votes
0 answers
116 views

Multiple email addresses (send and receive) per user with a single Active Directory account?

The company I work for has multiple brand names e.g. Contoso and Acme The users need to be able to send and receive emails from both john.doe@contoso.com and john.doe@acme.com Now if John replies to ...
0 votes
2 answers
136 views

Exchange mailbox UID confusion after deletion and re-creation with same alias

I created an exchange mailbox early 2019 and deleted it in december 2019 I think. Then I re-created AD and exchange account with same name and same email address in september 2020. Since, we have ...
0 votes
1 answer
2k views

This user's on-premises mailbox hasn't been migrated to Exchange Online

This user's on-premises mailbox hasn't been migrated to Exchange Online. The Exchange Online mailbox will be available after migration is completed. How do I get the mailbox provisioned without ...
0 votes
2 answers
190 views

Exchange Online: Would messages blocked by a mailflow rule (deleted without notification) show in a Message Trace?

Question on Microsoft Hosted Exchange: There are a bunch of mail flow rules and we are troubleshooting an issue with a missing incoming message (from outside the org). There is absolutely no trace of ...
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0 votes
1 answer
29 views

Exchange Server Issue from cancellation of email protection service - Emails stuck in limbo

My company is a small startup without an IT department. We registered our domain through GoDaddy and then added email service - which runs through Microsoft office 365. We recently added on an email ...
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0 votes
1 answer
519 views

How to stop exchange transport rule from adding duplicate disclaimers?

We needed to add a warning to all emails sent outside the organization. I went in to the M365 Exchange Admin center, under mail flow > rules, adding a rule that appends a disclaimer to every ...
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-1 votes
1 answer
96 views

Why is exchange custom retention policy changing back to previous policy

I setup a custom retention policy, however after an hour or so, the retention policy is changing back to the previous policy. Any idea why this could happen? I have set the retention policy a few ...
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0 votes
0 answers
19 views

Get Folder Statistic and create a CSV of that

i currently having a problem creating a automatic Script that get the Mails from a specific Folder and pastes them in a CSV. We have an AntiSpam Mailbox with 2 Folders in it. One that Stores the Spam ...
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0 votes
1 answer
717 views

Your message will be sent, but we're not quite ready

I just set up an Exchange 2019 server. Sending mail, event to oneself, does not work : messages are stuck in the Drafts folder with the following banner: "Your message will be sent, but we're not ...
0 votes
1 answer
361 views

Distribution group external sender and contacts

we have a distribution group on our exchange server 2019 with some external contacts in it. Receiving of external mails is activated for this group. Now if an external sender sens a mail to this ...
0 votes
2 answers
43 views

Is it possible to track which employees handled M.Exchange emails of a big company?

Background: Company uses Microsoft Exchange, has several email accounts that need checking(contactus, faxes, admin, comm, etc). Several employees (over 10) check these accounts throughout the day. ...
0 votes
1 answer
100 views

Why MS Exchange Security Updates come in pair?

I need to install this security update: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-24463 on Windows Server 2016. Why there are two items for Windows Server 2016? Should I install ...
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0 votes
3 answers
848 views

Exchange not truncating Transaction Logs after successful Full-Backup

I'm using Dell Avamar native Exchange Agent to Full-Backup the Databases on a Stand-Alone Exchange 2013 Server (latest updates and patches). It uses VSS. It's not an Agent issue, since at the end of ...
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0 votes
1 answer
114 views

Addition of Export-CSV to command in Exchange 365 PowerShell results in junk data while display output is correct

Got one I can't figure out and searching hasn't come up with much. I am trying to export out a list of all mailboxes with sizes. Using a Exchange 365 PowerShell I run the following command: Get-...
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2 answers
765 views

Enable SMTP Port 587 instead of Port 25

Through my Office365 subscription, I have an SMTP relay, ‘contoso-com.mail.outlook.com’. Currently this only accepts traffic on port 25 I want to look at setting up port 587 with TLS encryption, but ...
0 votes
1 answer
34 views

Spam mail from unknown gmail address

My organization have our own exchange server for mail communications. Recently someone from outside creates gmail accounts in the name of our employees and sending unwanted communications to our ...
-1 votes
2 answers
4k views

Sending Mail Fail with NDR '554 5.2.0 STOREDRV.Deliver.Exception:ObjectNotFoundException'

there is a problem in sending some mails to one user, some random mails sent normally to any recipient expect one user, which return a NDR as follow Remote Server returned '554 5.2.0 STOREDRV.Deliver....
0 votes
2 answers
488 views

Exchange 2019 Email Address Policy per user

We have been tasked with changing our company domain for email. Active Directory will remain the same. I have created (but not applied) a new Email Address Policy that specifies the new domain. The ...
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0 votes
2 answers
589 views

Why is autodiscover getting the wrong server?

Outlook clients are popping up the "do you want to allow this server" autodiscover box, but with the wrong server name in it. It pops up with a server name that is gone years ago. All our ...
0 votes
3 answers
57 views

Exchange mailbox stopped syncing on mobile - work with a weird behavior

Workaround found - I'm encountering a weird issue on Exchange Server 2016 on premise. 2 users of my Active Directory base stopped receiving new email on mobile (Outlook Android client), but email are ...

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