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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550 [REMOTE IP] is not allowed to send mail from [MY DOMAIN] (in reply to RCPT TO command)

Please note the brackets in the title. Mail server works ok (for years) - even when I tightened security months ago (SPD is "a mx -all" not even "~all"). Sends and receives ok. BUT:...
NLS's user avatar
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1 vote
4 answers
6k views

Exchange 2019 Antimalware engine updates download but don't get applied

I've been diagnosing for the past day or so some issues with an Exchange 2019 server related to Antimalware filtering/scanning. This was disabled on our server, I enabled it, and restarted the ...
cvocvo's user avatar
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1 answer
602 views

Setting sender address in Exchange 365 notifications

We are running Office 365 including Exchange. I've set up a rule to delete messages with attachments with a certain extension, and send a notification to the recipient. This is done with two separate ...
AristotleO's user avatar
0 votes
2 answers
712 views

Returning user in hybrid environment, unable to migrate mailbox

User returns after a couple of months, the AD profile was deactivated and the Microsoft 365 license was canceled. Doesnt matter that mails will be gone since its more than 30 days but what do I need ...
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1 answer
209 views

Barracuda Message Archiver 501 5.5.4 Invalid arguments - new Exchange-Server

after a Migration to Exchange 2019 I have problems to send mails to the barracuda message archiver from the new servers. The mails are forwarded via a send connector. I allowed the new ip-addresses as ...
Timo's user avatar
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0 answers
2k views

outlook autodiscover on nginx reverse proxy

I'm new in nginx reverse proxy my problem is outlook cant connect to echange server with auto discovery and open IMAP with this config : server { listen 80; server_name email.mydomain....
noshad sadehvand's user avatar
3 votes
1 answer
1k views

Update SSL certificate on Exchange 2016 without new request

I purchased a multi-year certificate (from Godaddy) for my exchange 2016 in 2020. They sent me the first (1 year) cert, which will expire soon, in response to my original request generated in the ECP....
TSG's user avatar
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1 answer
3k views

Set automapping for exchange-online SharedMailbox as default for all user

We have some migrated sharedmailboxes on a exchange online mailserver. When users get access to one of these mailboxes via mailbox delegation setup, these mailboxes do not appear automatically in ...
Sardar Agabejli's user avatar
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1 answer
617 views

winhttp proxy settings not being picked up by system account

We are in the middle of setting up Exchange Hybrid with new 2016 Exchange servers in their own network segment which the HCW was run and they have access to the Microsoft 0365 endpoints only through ...
NewExAdmin's user avatar
0 votes
2 answers
372 views

ADFS as proxy to some IDP

As far as I know, Exchange does support WS-Federation, but it does not support SAML. At the same time I have IDP that does support SAML, but does not support WS-Federation. Is it possible to configure ...
Oleksii's user avatar
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1 answer
721 views

Unable to create Import Jobs in Information governance of Microsoft 365 compliance in Exchange Online

We r using Microsoft 365. I am trying to create Import Jobs in Information governance of Microsoft 365 compliance in Exchange Online. I am getting the message "To create import jobs, you must be ...
Lakshmi Anand K's user avatar
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1 answer
3k views

Create a DKIM key to provide to a 3rd party so we can send as them?

We use o365/Exchange Online. All our SPF and DKIM configs are good for our domain (including 3rd party senders). Say we have a partner who has domain XYZ123.com (with their own mail servers) and they ...
techie007's user avatar
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1 answer
691 views

Exchange 2019 ActiveSync internal network native iOS Mail not working

Im in the process of migrating from Exchange 2013 to 2019. During this process I changed my routings (mail flow, OWA,...) to the new servers. Public-Routing: Public DNS Record --> Azure ...
Timo's user avatar
  • 11
0 votes
1 answer
2k views

Dynamic distribution group based or reporting hierarchy

Is it possible to configure a dynamic distribution group to contain all direct reports of some person, plus all their direct reports recursively? Verbose Info To get the direct reports only I believe ...
JohnLBevan's user avatar
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1 vote
1 answer
166 views

Exchange Journaling - What happens with delivery failure on certain recipients

If there are three users (A, B, C) in an exchange (O365 or recent Exch versions), and there is an incoming email To: A, B, C, where B and C got some delivery failures, will the exchange journal report ...
Sathish Kumar's user avatar
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1 answer
50 views

Search in Outlook not working

This has been a confusing issue so I hope I write this correctly and it makes sense. I've been having issues with an Exchange 2016 Server. The original problem was users not receiving their email. ...
Wildfire44601's user avatar
0 votes
2 answers
1k views

Outlook Calendar can display details but scheduling assistant can't even show free/busy after EXO migration

While all our end user mailboxes are still on our on-prem Exchange 2016 environment, I have moved a few room mailboxes to EXO. When I view these mailboxes in the calendar view in Outlook, I can see ...
Hans_R's user avatar
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0 votes
3 answers
779 views

Apply Exchange Public Folder Permission import via Import-CliXML

I did run into the situation that I lost all my public folder permissions which were assigned via groups. Before the migration started from our MSEX2016 server to Office 365, all the permissions got ...
Michael Uray's user avatar
0 votes
1 answer
113 views

Exchange. How to forward mail, not save it

We are migrating mail from one of our domains to the exchange (123123.com). We created users in AD, created mailboxes for them and copied mail from Google there. Also the domain was added to accepted. ...
Epigraphe's user avatar
2 votes
2 answers
2k views

Office 365 Exchange Public Folder lost SID assignment to security group folder permissions

We installed a new Exchange 2016 server and migrated all the mailboxes from the Exchange 2010 server to it. Then we migrated all the mailboxes and public folders from MSEX2016 to Office 365, and we ...
Michael Uray's user avatar
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1 answer
71 views

Implementing CRM Features in Micrsoft 365 Exchange Online

my Customer wants to migrate from Tobit David to Microsoft 365. Into David he uses an Feature named "Dv Relatations" where incommung and outgooging emails from all Useres are copied into an ...
Stefan Kaiser's user avatar
0 votes
1 answer
4k views

OWA 500 error, ECP works fine

I'm getting a 500 error after logging in to OWA. I enter the credentials on the sign in form, it redirects to the frowny face with error 500. More details just shows my server name and the UTC date/...
Tim's user avatar
  • 145
0 votes
2 answers
2k views

Getting statistics from Exchange Online about inbound mails from external domains

I've been asked to see if we can get an idea of how many external mails we receive, and what external domains are the most "active". Basically what's wanted is a report detailing how many ...
Laage's user avatar
  • 117
1 vote
1 answer
953 views

Why would an Email be missing recipient email address's in headers?

We have 2 companies working out of the same Remote Desktop environment. Company A uses Office 365 for all emails and Office apps. Company B uses a 3rd party hosted Exchange for sending emails but ...
TonyR's user avatar
  • 11
0 votes
1 answer
558 views

Automate the creation of secondary mailbox in Outlook 2016

I allow myself to do this post in order to have your help. I am currently looking for a solution to automate the addition of a secondary mailbox in Outlook 2016. I saw a lot of stuff including the &...
Yarka's user avatar
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0 votes
0 answers
86 views

EXCHANGE and MAPI : domain admins not allowed

I can't configure Outlook 2013 with Exchange 2016 as domain admin, it asks me for password, i nter it and reask as well. No problem with users, only with Administrators (Builtin, domain admins...) Is ...
Alex Lum's user avatar
  • 165
0 votes
1 answer
607 views

Exchange 2016 ActiveSync in Edge Server

Dears, We currently have an Exchange 2016 Edge server located in our DMZ and it is handling all our inbound and outbound emails. I noticed that there is no Activesync service/role inside Edge server. ...
Aboodnet's user avatar
0 votes
2 answers
54 views

Possible to Migrate external mailbox to new exchange installation?

I am looking for a way to migrate an externally hosted Exchange mailbox into a new Exchange installation. The situation is basically this: Current mailbox is hosted on exchange 2016, but I have ...
Ed Jones's user avatar
  • 123
0 votes
1 answer
2k views

Outlook trying to autodiscover server that no longer exists

Autodiscover seems to have a lot of similar issues, but this one case existing solutions don't seem to help... Has the common "Allow this website to configure server settings?". However, ...
Brian Knoblauch's user avatar
-3 votes
2 answers
4k views

how to determine if I have the latest security update or not by powershell?

I'm a beginner to exchange server and powershell, I'm working on Exchange server (on-premise), how can I determine if I have the latest updates, security update, version of windows server (core) and ...
Ali Muhanad's user avatar
1 vote
3 answers
2k views

Outbound mail not sending (newly-installed Exchange 2019 server)

Overview: We have a demo environment where we have installed Exchange 2019. The Exchange 2019 server is set up in Classic Hybrid mode with centralised mail transport enabled. Inbound emails are ...
user1913559's user avatar
0 votes
1 answer
148 views

MS365 + Hybrid Exchange Distribution Group Oddness?

So, one of the companies I work with encountered some chaos in their hybrid MS365 / on-prem deployment. There is a distribution list (we'll call it [email protected]) which is present on both the ...
Thomas Ward's user avatar
0 votes
1 answer
1k views

Exchange Online - Reporting on blocked users

There is a feature in Exchange Online which blocks users from being able to send email when they send too many emails in a time period. It usually triggers either when a user sends a load of emails ...
Norphus's user avatar
  • 165
0 votes
2 answers
4k views

Exchange 2016 - Users mail keep being stuck in a Shared Mailbox‘s outbox until someone else uses the Same Shared Mailbox

I have come across a very unique problem that I have yet to find a solution for as even google failed me. When User1 tries to send a mail as the shared Mailbox [email protected] the mail is ...
Kyoshi's user avatar
  • 33
0 votes
2 answers
631 views

Exchange 2019 Database Permissions

I have an Exchange 2019 server which is running fine but ideally I would like to run offline defrag on an archive database that is now way bigger than it needs to be after removing a mailbox which, ...
USD Matt's user avatar
  • 5,411
-1 votes
1 answer
148 views

Reverse hybrid exchange: concerns with adding new on-prem exchange to existing 365 hosted exchange environmnet

I am curious to know if there are any major gotchas with setting up a 'reverse hybrid' 365 deployment, where all mail flow is already in the cloud with on-prem ad sync already enabled and simply ...
abakedapplepie's user avatar
0 votes
1 answer
3k views

Whitelist internal address on Exchange 365 for "Potentially compromised accounts"

I am receiving the following alert for an internal address: Potentially compromised account. Anomalous sending patterns were detected resulting in the user being restricted from sending mail ...
THE JOATMON's user avatar
2 votes
1 answer
1k views

Change timeout for message review in Exchange Online?

I have set up some phishing/malware mail-flow rules that will forward emails to me for review based on attachments or a list of domains. I can then choose to accept or reject the message. It seems to ...
THE JOATMON's user avatar
0 votes
2 answers
540 views

How to setup a daily report of users which are sending more than a defined numer of email outside organization within 24h

I'm trying to create a script and schedule it on exchange in order to have a daily report for users which are sending more than a defined numer of email outside organization within 24h. I found this ...
Naldo's user avatar
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1 vote
0 answers
804 views

Exchange 2019 - IMAP Sync Failure

I have just deployed a new instance of Exchange 2019. Active Sync works fine (outlook and owa) and mail is processed ingress/egress fine. After enabling the IMAP services and associating the self ...
Les's user avatar
  • 11
0 votes
1 answer
444 views

iOS 14.7.1 + Exchange 2019 - Server certificate no longer trusted

After upgrade to iOS 14.7.1 I am no longer able to sync my email/calendar/contacts with company Exchange 2019. Our Exchange uses certificate issued by our enterprise CA and these seem to become ...
LiBRo's user avatar
  • 1
0 votes
1 answer
833 views

Exchange Server 2016 - identify full hybrid and/or minimal hybrid using or not

We have 2 Exchange Server 2016. I want to check it if I am using Full Hybrid and / or minimal hybrid in our environment. What should I understand from the following output? get-hybridconfiguration ...
Cell-o's user avatar
  • 327
0 votes
0 answers
44 views

Turning off SSL is IIS version 10

We have a server running Windows Server 2016 with IIS 10 installed , hosting a database with a front end website attached to it which displays the data on a TV mounted in the workshop. Problem we are ...
perry's user avatar
  • 1
0 votes
1 answer
1k views

Export Mailbox as PST in Exchange Admin Center

I am trying to export a few mailboxes as .pst files in Microsoft's Exchange Admin Center: https://docs.microsoft.com/en-us/exchange/recipients/mailbox-import-and-export/export-procedures?view=...
p3scobar's user avatar
0 votes
2 answers
510 views

Empty Email when using MS365 as a mail relay from a Python application

We've got a very weird issue going on here. Take this example email (raw form, sanitized): To: [email protected] From: Thomas Ward via TestList <[email protected]> Subject: Test Message ...
Thomas Ward's user avatar
0 votes
1 answer
2k views

Mailbox unavailable. The server response was: 5.7.1 Client does not have permissions to send as this sender

I have an issue where a new mailbox in Exchange Online is reporting Mailbox unavailable. The server response was: 5.7.1 Client does not have permissions to send as this sender when sending mail from ...
usabletech's user avatar
0 votes
1 answer
48 views

Deleted emails automatically re-appear in original folders of an Office365 email account

I have an O365 email with problem that I cannot delete email in any folder like Inbox, Sent Item, Deleted, etc... After I delete one or more emails, those deleted emails automatically re-appear at the ...
H-v-A's user avatar
  • 1
0 votes
3 answers
268 views

Tag External Emails from NEW external addresses

We work with a giant company that prepends an email tag to every externally originating (to them) email that goes something like: "Warning, this email originated outside your organization - don't ...
Thomas Bailey's user avatar
1 vote
1 answer
6k views

CLIUSR certificate expiration

I have an Exchange 2019 DAG and the CLIUSR certificate (clusinfracert) will expire soon. I have extensively researched this and there are very few resources online that address this certificate. ...
meetooR's user avatar
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1 vote
0 answers
271 views

Exchange 2010 to 2016 (Multi Site)

My scenario: Datacenter #1 — AD Site “A” * -4 ISP internet connections. (Outbound independently) * -2 DCs GC (FSMO) Internal DNS * -2 DNS Servers - External DNS hosted into a DMZ (SPF / MX / PTR ...
Gustavo R.'s user avatar

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