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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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 ...
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Is it possible to change the expiry threshold for expiring certificates in Exchange? (Event 12018)
We've recently switched to using LetsEncrypt for our Exchange certificates, which have a maximum validity of 90 days.
Unfortunately this means I'm being pestered with tickets generated by our ...
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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....
CommunityBot
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Login Fail for IMAP on Exchange Server 2016
I have deployed Exchange Server 2016. I am able to send email over 587 while I face Login failure over IMAP 993 and POP3 995.
Over Microsoft Tool https://testconnectivity.microsoft.com/ IMAP Test ...
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Outlook 2013 and Exchange 2016 "The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action"
I just installed and get everything to work with my new Exchange 2016 server, but when i adding it to Outlook 2013 i autodiscover setup works and it says restart outlook.
After restarted outlook i ...
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Strange: Users can't delete items from public folders in Outlook 2016 when the client has been logged in for about 30 minutes
We are running Exchange Online and Exchange 2013 in hybrid mode. Our public folders are hosted online.
After a fresh boot/reboot, our users can delete items (permissions vary from Owner to ...
CommunityBot
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Hybrid on-prem connector - Won't validate - Backlog of emails
We're having an issue with our on-prem Exchange 2016 validating as a connector with our O365 portal, below error;
450 4.4.316 Connection refused [Message=Socket error code 10061] [...
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Allow On-Prem SMTP Connections to send email to in-Cloud (O365) Distribution List
I would like to move many of my on-Prem Distribution lists to ExchanceOnline Distribution Lists/Groups. (Not Microsoft 365 Groups/Teams style Group). Just a Simple Distribution list to be able to ...
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Exchange 365 can't send as alias
We're running Office 365 for a company. In Exchange admin, I have all domains added, I did enable "Send email as aliases" in Mail Flow settings, and I have added alias to my email address in ...
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Change default calendar AccessRights in Microsoft Office365's Exchange
My goal is to change the Default mailbox Calendar AccessRights to be 'Reviewer' instead of 'AvailabilityOnly' for all newly created Office 365 users.
After searching online and studying Microsoft's ...
CommunityBot
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Exchange 2013 -> 2016 Move Requests Stuck
I'm trying to migrate users from Exchange 2013 to Exchange 2016 but when I create a move request, even with only 1 mailbox in the queue, with a size of a few kilobytes, it'll inevitably end up at ...
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How do I copy allow and block lists from one EOP policy to another?
We have set up one Spam Filter policy in Exchange Online Protection with our allow and block sender and domain lists and we have created a second policy that we want to have the same allow and block ...
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Exchange, retrieve the message found from message trace
I am running exchange online via office 365. We had a customer email that our user could not locate. I ran a message trace and it found the message. We ran a search in the users outlook but the ...
CommunityBot
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Mobile devices unable to send mail due to servers sending quota being exceeded
I have a customer who has their own exchange.
Their mobile devices are struggling to send emails with attachments and keep reporting that "your email server's sending quota has been exceeded".
I've ...
CommunityBot
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Exchange Full Hybrid - Email to distribution list gives '550 5.5.3 too many recipients' error (cloud to on-premise)
We are in the process of migrating from Exchange 2016 CU19 to Exchange Online. We are running a full hybrid configuration with two on-premise servers in a DAG. So far we have only migrated a small ...
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Can you modify the OWA redirection page in a hybrid O365 environment?
In a hybrid Exchange environment, if you migrate a user mailbox and then they attempt to access the mailbox using the on-prem OWA (Outlook Web App) link, they will be presented with a page that ...
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How does Exchange Server store internally email categories?
Long story short: we had to migrate a shared customer support mailbox accessed by several people using Thunderbird/IMAP to a hosted Exchange Server 2019. Everything works fine... except the part where ...
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Watchguard logs incoming SMTP connections has an dst_user entry. Where can I change this entry?
Hello fellow Exchangers,
as mentioned in the title any incoming smtp connection is routed correctly to our onpremise microsoft exchange server and the logs look as described here:
https://www....
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Connecting to remote server failed with the following error message : The user name or password is incorrect
I am trying to connect PowerShell remotely to an Exchange server. This is to a separate AD Domain. (Connecting domainA to domainB) I can connect from domainA to servers on other domains just fine. I ...
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Out of Office was setup on an email which is now an alias; anyway to remove that out of office?
We have a user who a few months ago went through a process of condensing the multiple email addresses they had (All of which had their own associated mailboxes) into one email address. The past email ...
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How do I enable "End Meeting Early" for all users in an organization in Exchange Admin Center?
We want to adopt a company wide policy for all meeting to have a delayed 5 minutes start to all meetings. For example, meetings should start at 2:05 PM instead of 2:00 PM regardless of the user and ...
CommunityBot
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SPF spf.protection.outlook.com is invalid for messages within tenant
When sending mails through our Exchange 365 service those mails get through successfully, but if we look at the mail headers we see that where the sender and recipient are in our tenant the mail's ...
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Applying Transport Rule only if the mail is text/plain and another if it is text/html
I've been at this for quite some time now, not really getting it to work. Unfortunately I am only able to test on our Office365 account and changes take forever to propagate so I can test after ...
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Where is Exchange Online Multipart message limit set?
A user reported that one of their suppliers started getting NDRs when sending a airline tickets via email. The NDR says:
Remote Server returned: '550 Too many MIME parts: 178 > 100'
When looking ...
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How to capture incoming emails on exchange before they reach transport agents?
I'm trying to debug why some inbound emails are failing DKIM checks. I'm running the latest version of Microsoft Exchange server 2019 on Widows Server 2022.
I have enabled pipeline tracing via the ...
Danny.Ando
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Office365 - Exchange Mailflow Rules for Signature
im using Office365 / Exchange and I have setup a nice HTML template to attach dynamic
E-Mail signatures using the Mailflow-Rule: "attach disclaimer".
I have used the attribute %%PhoneNumber%%...
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Outlook 2007 login prompt repeat prompt and exchange 2010
It seems when I first setup a new user in Outlook 2007, a login prompt comes up and asks for credentials. After the account is setup, the login prompt will repeatedly prompt throughout the day and is ...
CommunityBot
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Resource calendar with approval sending approval emails with "No response required"
[Note: this appeared to be the most applicable Stack site to post this into - apologies if wrong]
Strange situation. I've configured up resource calendar in Office 365 to act as a shared holiday ...
CommunityBot
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Mailbox cannot be found after migration to Exchange Online
First I should describe our situation a little bit. We have 2 different domains. Let's call them contoso.com and contoso2.com. Previously we only had contoso.com but there was internal conflict and ...
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Queued mail stuck for a while on exchange 2010 in coexistence with exchange 2016
The emails are queued for approximately 2 hours and then it works for an hour, sending everything that is in queue. Repeat loop all the time.Each server is independent, there is no DAG.
They are only ...
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o365 - Unable to delete items from mailbox
a user is not able to delete items from his mailbox . I have tried to force this by running command. I have tried this both OWA and Outlook. unfortunately no luck.
Start-ManagedFolderAssistant -...
CommunityBot
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Exchange 2016: How to audit mailbox user access to get their IP?
I have a mailbox user (Exchange 2016) who belief that his mailbox was hacked.
So I want to audit the access to his mailbox.
I enabled audit via Set-Mailbox -Identity "Ben Smith" -AuditEnabled $true
...
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Exchange Server 2013 to 2016 Migration error
I'm currently facing an issue during an Exchange Server database migration process from Exchange 2013 to Exchange 2016 and could really use some assistance. The migration process is failing with the ...
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Weird email spam issue. Google Domain Exchange email server
We have a client who is blocking our email domain.
Their IT wrote this to us. I've never seen this be an issue before.
You are hosted on Google but have entries referring to Microsoft email protection ...
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O365: Deleting messages via POP3 suddenly not working
A third-party app is using POP3 to download messages from a O365 mailbox. This has been working great for a few months. Some time on Saturday, DELE commands just stopped working. Looking through the ...
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How can I configure haproxy to put two frontends to access owa online?
I am facing a problem with HAPROXY on an Ubuntu 16.04 server when redirecting to show OWA on the internet. I have a domain, and I installed exchange server 2013 on windows server 2012 r2.
I need to ...
CommunityBot
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Exchange online mail flows with python
We are running Office365 for our email platform. We are a small development firm. Most of the users are either Linux or Mac users, no Windows users.
From what I was reading, there is a way to create ...
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How to assign certificate to IMAP/S and SMTP/S in Exchange 2016?
Please advise me because I pull all my hair out.
I have Exchange 2016 and I want to assign one officially signed-off certificate to the IMAP/S port 993/tcp and SMTP/S port 465/tcp .
I went through ...
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Exchange 2010 mailboxDabasecopyStatus * service down
Today i tried creating a new mailbox on my exchange 2010 multitenant sever.
The mailbox creation failed with error
"Load balancing failed to find a valid mailbox database."
After some research on ...
CommunityBot
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Check incoming email adresses on exchange server
We are using Exchange Server with Outlook, and a CMS system to manage our customer's Email addresses. The CMS can export the email address list and we could import it somewhere to outlook/exchange, if ...
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Exchange 2003-Exchange 2010 post migration GAL/OAB problem
I am very new to Exchange so forgive my newbie-ness. I've exhausted Google trying to find a way to solve my problem so I'm hoping some of you gurus can shed some light on my next steps. Please forgive ...
CommunityBot
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Automatic alert/notification of calendar items added to Public Folders
We currently use Public Folders with Exchange 2010. We have a series of shared calendars throughout the organization. Some of the items posted require us to set up devices (video conferencing for ...
CommunityBot
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SuspiciousRemoteServerError what I can do?
from some time i have a problem with send e-mails. I have a Exchange 2013 with SP2, newest CU. When I try to send e-mail with attachment I get a error:
I have a kaspersky security 8.0.
SMTPSEND....
CommunityBot
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DKIM signing - does it matter which transport agent does the signature
I am quite new to the dkim area. I understand how it works but some details, i am missing.
Let's say, i have a mail server that contains user boxes (Exchange) and an edge server that just transports ...
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Exchange Server: Is it possible to find out which user marked an email as read?
We are running a self hosted Exchange 2016 Windows Server 2016 Datacenter.
There is a shared mailbox used by multiple users.
Users have been told to mark emails in this account only in special cases, ...
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Email/Exchange/Office 365 - Postmaster Spam
I use Office 365 for email with about 30 people using 6 domains.
I occasionally receive messages from the "Postmaster" saying that an email was rejected which was never sent. For instance:
...
CommunityBot
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Resolving Exchange 2019 Management Shell startup failures
I am trying to figure out while Exchange Management Shell is continuing to fail.
I have made sure kerberos is enable on the IIS. I am not sure what else I can do to try to fix this issue.
...
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Outlook shows an error message when idled for a long time
As mentioned in the title, "Attempt to log in to Microsoft Exchange failed" appears when using Outlook 2019 after being idled for a long time.
error message
For example: When user select &...
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Change Domain and DNS settings on Exchange 2016
I've seen a few questions on this topic, but I have some new ones and am looking for more detail or clarification on some of the answers because I'm super green regarding Exchange. I apologize if any ...
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Forwarding email message breaks DKIM
I have problem with postfix, DKIM and forwarding messages. In almost every article about DKIM I’m reading that “if I do not modify any fields in message header, DKIM signature should still be valid ...
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