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.
3,569
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Enabling and Setting an Exchange Remote Mailbox using EWS or Graph via API call
I work for a higher Ed organisation and currently we onboard new students to Active Directory and Hybrid Exchange with Powershell scripts.
I am bascially seeking to automate and move the process to a ...
- 13
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1
answer
24
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Exchange - OnPremises - Send-on-behalf for public folders behave as Send-As
We have a weird problem that has started occuring.
Mail-enabled public folders configured as Send-on-behalf-of has started behaving as if they are configured with Send-AS for users.
We have certain ...
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1
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28
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Exchange online and zimbra on premise mail server sharing same domain
Am planning to Migrate my Zimbra mail server to Exchange Online but in the meantime, I need to configure some users (30 users) on Exchange Online and the rest on the Zimbra mail server version 8.8.15 (...
patrick stephen
3
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3
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Purview Message Encryption: Require OTP codes for all recipients, and bypass MS365 tenant logins for all outgoing emails
Related: MS365: Sending encrypted to remote tenants occasionally fails with "user not in tenant"
As in the previous message, we are sending outgoing encrypted messages via MS365 and some ...
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40
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can't get email from exchange to postfix
I configured a postfix mail server to receive emails.
I enable TLS as per security requirements as well as port 25 is banned by the provider.
I enabled both 465 and 587 with the following on master.cf
...
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0
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18
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Block exchange from sending mails to internal organization
there is a very specific challenge I'd like solve and so far nothing worked.
Situation:
We have a rather large exchange environment with multiple domains (@domain-a.com, @@domain-b.com, @domain-c.com)....
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1
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69
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How to delete orphaned mailboxes
I have no clue how this could happen:
Get-MailboxStatistics -Server returns 2 exactly equal entries Office [Foo Software] [It shows the used format]. One mailbox has 411 ItemCount, the other has 7.
In ...
- 336
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1
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54
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Exchange On-Prem Retention Tag/Policy to Delete Online Archive Emails
We are running Exchange 2019 completely on-prem. Our default retention policy archives emails after two years to the user's Online Archive (it also cleans out some folders like deleted items, drafts, ...
- 444
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2
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85
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Export to file Get-ACL for AD Computer Object then import later using Set-ACL
I could use some help. My Active Directory is 20 year old, its about to start buying legal alcohol and god knows where it's going from there...
All joking aside, Exchange has ravaged my AD DACLs. To ...
- 101
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3
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123
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autodiscover URL working/not working
I have this issue:
In order to upgrade MS Office from 2013 to 2016 I had to set-up autodiscover so Outlook 2016 can connect to the Exchange 2010.
Let's say this is my autodiscover URL:
https://...
- 336
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0
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38
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Are there IMAP/POP3 to MS Graph Mail API proxy?
I've got some server product that retrieve emails via POP3/IMAP protocols. Currently switch from Exchange on-prem to Exchange online. Sadly it's not planned to enable POP3/IMAP support anymore even ...
- 11
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1
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96
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MS Exchange 2016 and high memory usage
Our MS Exchange 2016 instalation has a high memory usage in store worker and sometines this stop to receive then email from another server. What may be wrong in our instalation?
- 243
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2
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67
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Send emails from Exchange to external recipient with the same domain name
I have two mail servers - one of which is on Exchange. Both mail servers have the same domain name, let's say domain.com.
On the Exchange Server I have distribution list groups, but I need to add ...
- 23
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1
answer
60
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Exchange 2013 MX priority
My exchange server 2013 when the destination domain has more than one MX record does not choose the MX record with the highest priority and is always trying to deliver to the lowest priority mx record....
- 11
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1
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57
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Script to write email into group working intermittently
I am running the script below in exchange management shell. The purposed of this is, I want to add a list of emails from an excel file (file has two columns, names and email) to a group. So as you can ...
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2
answers
81
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Error install exchange 2016 coexistence with exchange 2010
When installing exchange 2016.
Error: step 7 of 14 mailbox role: Transport service
The following error was generated when "$error.Clear();
if ( ($server -eq $null) -and ($...
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-1
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1
answer
98
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How can I forward a copy of all passing mail in Microsoft Exchange?
I'm writing an yet another mail archiving software. It has an SMTP-listener. External MTA should forward (both incoming and outgoing) mail to it.
It was very easy to setup forwarding in postfix ...
- 59
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1
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65
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Internal Address Spoofing using Outlook SMTP Server
Is there a way to harden Exchange Online to prevent spoofing of internal addresses using SMTP?
For example, if I connect to Outlook's SMTP server and issue the following commands:
HELO domain.com
MAIL ...
j4k3
-1
votes
1
answer
33
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Back Pressure Event 15004 was detected
I have error 15004 and 15005 on excange server installed machine, resource utilzation is ok (according to zabix), what can cause it except memory and space?
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1
answer
89
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Exchange 2016 Remove Autocomplete Entry for All Users in Domain
I would like to remove an autocomplete entry for all Exchange users in the company.
An important address is moving to another mailbox and we want to avoid that users get error messages when using the ...
- 124
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1
answer
17
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POSTFIX : Relaying all domain users from postfix server to exchange
I deleted my post and re-created it to be as clear as possible.
I m a beginner with postfix.
So, I have a postfix server relaying mail to my exchange 2016 server.
I want all domain users to be allowed ...
- 155
1
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1
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121
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Exchange Server Cannot send and receive e-mail (501 5.5.4 Required arguments not present)
I am unable to send nor receive e-mails on my new Exchange server.
It is behind a pfSense firewall. All the necessary ports are forwarded to exchange server.
DNS records are valid on DNS provider.
...
- 133
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1
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Changing the working hours on a room mailbox in Outlook/Exchange
I setup a Room resource recipient in Exchange so that users could book the associated conference room. This part works, but when I attempt to view the room's schedule in Scheduling Assistant, the room ...
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1
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44
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Exchange 2019, modify AddressList
Information stored in AD, for example IP Phone, Mobile and so on do not displayed in users Outlook>Contacts. As I understand I must use:
Set-AddressList -Identity "All Users List" -...
0
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1
answer
132
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How to set-mailboxfolderpermission with import-csv
I want to import bulk zoom from CSV file.
The csv file format: name,email,capacity
And I create the room with the script as below:
$roomlist = import-csv roomlist.csv
foreach($room in $roomlist){
...
0
votes
1
answer
79
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Exchange 2019 old migration issue
So awhile ago I was doing some Exchange Online migration work. I setup a migration from ExO to Ex2019 for a mailbox, but it failed due to space issues. I since fixed the space issue by creating a new ...
- 121
1
vote
2
answers
155
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Exchange Transport Rule to block combination of recipients?
Is it possible to create an ETR that blocks certain combinations of recipients? Imagine I have two customers in different domains with similar email addresses. I want to prevent sending to recipient ...
- 156
0
votes
1
answer
203
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Show an external internet calendar (ICS) in everybody's Outlook on 365
we're using M365 with more platforms - Outlook on Mac, iOS, Windows and web, as well as Calendar.app on iOS and macOS.
And we have an external HR web app which has an internet calendar such as webcal:/...
- 101
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2
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644
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Exchange 2019 ActiveSync + Mobile Outlook App stop syncing
Good day!
We have a local installation of Exchange 2019.
Services are published through the IIS ARR reverse proxy.
Everything works correctly, including OWA and the Outlook desktop client.
But, at ...
-3
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2
answers
42
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outlook 365 distribution list overqualified
I need to issue an alias for a set of email addresses of our external partners-clients that a group of our employees use to send mail to so they don't have to pick them one by one each time. Locally ...
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1
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160
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How to add a confirmed O365 domain as an Exchange Online accepted domain?
A little background on our AAD/O35 tenancy:
We have domainA as our primary domain. This is used for SSO, our primary email addresses, etc etc.
We acquired another business.
One of their domains (...
- 315
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91
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Exchange 365 rule to block messages that contain any javascript
How can I add a rule that blocks any message with any explicit (script tag) or implicit javascript code (e.g. onclick="....")?
I know Exchange online has a rule to block any executable ...
- 11
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1
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26
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Exch 2019 - Change display name for the stored mails
We have the policy to create AD users in format of FAMILY NAME Given name, so my name appeared as BARANYI Peter (btw: this is the standard Hungarian format :) ).
Now the management asked us to change ...
1
vote
2
answers
498
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How to disable an Exchange 2016 mailbox and forward anything sent to it
fyi i would consider myself an exchange-noobie
Ok, the scenario is:
User left the company, but still gets a lot of mails sent to their mailbox. The AD User-password has been changed so they no longer ...
- 113
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1
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160
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Must Exchange server be published on Pfsense
I have an exchange server behind a PfSence unit, internal mails are routing effectively, but external mail are not being delivered. Must i publish my server on pfsense before external mails can be ...
0
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2
answers
524
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Replace Exchange 2013 with 2019 servers and HWLWC
My setup is hybrid with all mailboxes in O365.
On-prem we have 2 x 2013 servers used for management and mail relay.
I would like to add 2 x 2019 servers to initially run concurrently with the 2013 ...
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1
answer
232
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Domains and Exchange 2019 [closed]
I've got a full domain environment at home and I've had my primary domain name for 13 years now and wanting to change it so it matches my exchange servers email domain.
For example; fyi those domain ...
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1
answer
121
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error 550 when IMAP users send mail to outside
in the newly installed exchange 2019 I'm facing a problem, employees that send mails to outside with IMAP are getting this error in their inbox:
Server error: '550 5.7.54 SMTP; Unable to relay ...
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0
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0
answers
92
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can`t edit anything in exchange admin center 2019
recently in a new exchange 2019 installation server I'm facing a problem, every time i edit anything in ECP it turns into some kind of code and make me unable to save or edit it agian!
this is the ...
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1
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230
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Exchange Online "Standard protection" preset vs Exchange Online Protection?
I noticed my 'tenant' had this Standard Protection preset off. Apparently this is supposed to be the 'baseline protection profile".
However, everywhere I am reading that EOP is enabled by default ...
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2
votes
2
answers
477
views
Slow SMTP responses with Exchange 2013 (Not network infra related)
(I know 2013 is shortly out of support, and it will be replaced, but in the interim, I'm experiencing an issue I would like to fix.)
I will use telnet over port 25 as my example, but normal traffic ...
- 29
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1
answer
294
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Unusual Error on Exchange Server 2019 Enterprise
I've got my own personal Microsoft Exchange Server 2019 Enterprise at home and I recently upgraded all the VMware Guests to Server 2022, Rebuild all my domain controllers from scratch from 2012 R2 ...
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1
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57
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cURL to OWA not working from newly-installed RHEL server but working from Ubuntu server
I have two Linux servers acting as a reverse proxy between my Exchange server and the internet. The newest server is RHEL 8.7.
When I attempt to cURL to OWA from the RHEL server I am getting the ...
- 219
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1
answer
36
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Prevent External Google Doc Shares from Arriving via Email
We have been receiving a large number of malicious Google Docs being shared to our users via external phishing emails and are looking for a way to prevent these from coming through our Exchange server....
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0
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42
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advise on an Internal only On Premises Exchange 2019 Name spacing, with an Existing External exchange online with the same domain
Currently we need to deploy a new on premises Exchange 2019 with 500 mailboxes, This exchange server will work as an internal only exchange server.
At the same time we have Exchange Online with 60 ...
2
votes
2
answers
58
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Does Exchange support notifying external systems on changes to calendars?
We are going to be integrating our own software system with Exchange using EWS (either Exchange 2016 or Exchange Online), meaning we intend to call out to Exchange for booking resources and people. We ...
- 641
1
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2
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197
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Exchange to use second damain as users default email address
I am using Exchange 2019 and have setup a second domain, but when a user received an email on this second domain and will answer to this email, the answer always will be send from his default email ...
- 11
0
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3
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488
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Outlook's SafeLinks send GET requests - why isn't this a bigger issue?
We've noticed an issue with our HR system where users request leave, this approval is sent to their manager, and when their manager clicks the link to approve it they see an error saying that the ...
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161
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Outlook 2016 on Exchange server is not processing rules
Someone has asked me to help with his exchange server in the office,
however I am a network administrator and not really experienced with
Windows and Exchange.
Problem here is that they have a set of ...
- 237
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vote
2
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1k
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Office 365 - Forward email to external domain without a mailbox
We have office 365.
We want to forward email addresses from our domain to people outside our domain.
i.e.
[email protected] -> [email protected]
One way I think I can do this is:
...
- 13