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Questions tagged [outlook-web-app]

OWA, (Outlook Web App), is the current name for the webmail service of Microsoft Exchange Server 5.0 and later that comes included as a part of Microsoft Exchange Server or Microsoft Office 365. It was previously called "Outlook Web Access."

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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/...
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Exchange 2013 and 2010 coexistence - OWA Premium UI touch layout does not automatically load on mobile devices

As an interim migration step, that will last at least for a year, I have an Exchange 2010 server co-existing with an Exchange 2013. Both fully updated with latest Windows and Exchange updates. After ...
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Exchange 2016 - Huge ClientAccess OWA & Perm Folders

Running an Exchange 2016 server currently with CU19. I have noticed over the years of CU's been applied that the Exchange Server\V15\ClientAccess\OWA folder has grown in size (Currently 9Gb in size, ...
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Exchange 2016 OWA and ActiveSync 503 error

We are getting intermittent 503 errors for OWA and ActiveSync with Exchange 2016. The errors only seem to affect accounts in databases which are not active on the front end server so there appears to ...
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Why mails sent internally, disappear upon arrival? [closed]

I have a problem with internal mail flow. On one shared mailbox I have this issue, that when email is sent to it, some users don't get it. It's Microsoft Exchange Server 2016. I did use Test-Mailflow ...
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Do new versions of OWA have an equivalent to the About page of OWA in Exchange 2010

Using the Exchange 2010 version of Outlook Web App (OWA) you could click the (?) button and then click About to get a really useful page containing information about the Mailbox server, Proxy server, ...
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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 ...
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Way to closely examine Outlook rules on Exchange server side

Users in my organization complain about undelivered mail very often. 80% of times the reason are misconfigured rules on user's Outlook. Is there any way to closely examine Outlook rules on server side ...
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Strange behavior: Exchange 2010, delegation, OWA, duplicate sent items

Please help me understand this strange (to me) behavior Goal Allow delegated users to send-on-behalf-of other mailbox using OWA and iOS/Android apps. Sent items should appear only once in the ...
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Howto deploy an Outlook addin only to our own staff

We're developing an Outlook addin that is specific and proprietary to our organisation. So we'd rather not put it on AppSource and we'd rather not put the addin source files (all the js,css etc) on a ...
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Exchange OnLine / Office 365 / OWA - Cannot see PDF previews and cannot download attachments

This is a problem from a customer. When he opens an email with a PDF attachment in OWA, the mail opens with no problems, but clicking on the attachment will show an error or a white box. Clicking the ...
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What is difference between Disable 'OWA for Devices' and 'Outlook on the web'

What is difference between Disable 'OWA for Devices' and 'Outlook on the web' I want to disable user from access the email from any browser, but want user to access email using Outlook and Mobile ...
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Disable OWA on Ex2016 but leave EAS

For security reasons our company has decided to disable OWA (at least to the outside world), but would like to keep EAS (Activesync) available for syncing mobile devices. Is this possible? Both use ...
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Exchange 2010-2016 coexistence: Why does OWA do a 301 redirect before login?

I have an Active Directory domain. We have two on-premises mail servers -- one running Exchange 2010 (exchange2010.example.com) and one running Exchange 2016 (exchange2016.example.com). My goal is to ...
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Will Deleting the OWA Virtual Directory in ECP Cause any Unintended Consequences?

We have an OWA site that we want to remove. We dont want our users being able to see the OWA web site, and we don't want external threats to see our OWA site. Other services like Autodiscovery are ...
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Exchange 2016 cant access OWA - incorrect user ID and password

Originally i was having issue to use public network to access my exchange 2016 OWA, After my network team allowed the NAT 443 port, i'm able to land on OWA web pages externally, but no matter what ...
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Exchange 2016 cant access externally

I have setup ms exchange 2016 in my company environment, done configured SSL and setup all virtual directory internal and external url as hostname.company.com, but I still can't land OWA when using ...
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Exchange/Outlook Rules

Scenario: Exchange 2013 (yes, I know... currently planning to move to M365) so, we have our accounting inbox accounting@company.com that inbox has two additional email addresses assigned invoice....
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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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Emails still going to Gmail & Hotmail spam after removing host from several blacklists

As I mentioned briefly in the subject the IP address of our mail server got blacklisted a while ago. One of the sites on the server got hacked, which resulted in the addition to a couple of blacklists....
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IIS 10 ARR : Client certificate not interpreted by backend server

I've made an IIS 10 with ARR on a DMZ windows server 2019 not domain joined to reverse proxy to OWA (exchange 2016) with client certificate authentication. I get error 402.1. Here's some details. On ...
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How to remove email from deleted items in outlook on the web

I'm using office 365. I want to remove my email from deleted items as it's taking too much space i.e 70 GB. I tried to delete it from the clean mailbox section but since there is too many email it can ...
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SPF Outlook Web App (OWA) undeliverable email

PROBLEM: Outlook.com web app (OWA), synchronized with my local server via IMAP and SMTP(STARTTLS), returns "Undeliverable message" for all messages sent. PROPOSAL: (rejected) This returning message ...
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Microsoft IRM and ClientAccessServerEnabled Option

I'm looking for some additional insight on Microsoft IRM and the ClientAccessServerEnabled option, and what enabling or disabling does and any potential ramifications. About half of the tutorials ...
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Attachment size on exchange OWA with squid

We have a size limit of attachment on exchange 2016 for 25MB. It works with outlook client but not with owa clients. We can’t attach document larger than 100KB. When I try to attach, I got a TCP_MISS/...
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Exchange Server 2016 OWA Error 500

We are currently unable to logon to OWA and ECP. After entering our admin crendentials, we get an ERROR 500 on the browser. Looking at the Events for exchange, we see this error often: Event ID: 2121 ...
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Outlook and OWA search not working - no results

Our environment consists of a single Exchange 2016 CU8 server and multiple clients using Outlook and OWA. Searching (fast search and advanced find) both are not working in either OWA or Outlook ...
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Exchange 2013. I cannot send email. error: You don't have permission to perform this action

I am upgrading from Exchange 2010 to Exchange 2013. I have installed Exchange 2013 on a separate server and managed to migrate my mailbox to an Exchange 2013 database using Exchange 2013 EAC/ECP. ...
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Cannot use echoping to monitor OWA login page

I'm trying to monitor my OWA logon page using smokeping. smokeping uses echoping like this: # /usr/bin/echoping -t 2 -4 -C -h /owa/auth/logon.aspx -n 20 email.charite.de HTTP error "HTTP/1.1 401 ...
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Custom/vanity domain name configuration in Exchange Online

Currently, when users 'Add account' in Microsoft Outlook 2016, the users are automatically configured (possibly through autodiscovery) to connect to 'https://outlook.office365.com/mapi/nspi/?MailboxId=...
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Unable to login to Exchange 2010 OWA

I recently installed an Exchange 2010 SP3 server on a Windows 2012 server. The domain controllers are Windows Server 2012 R2 and the domain/forest functional level is Windows Server 2008 R2. The ...
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Emails are constantly marked by Outlook.com as SPAM

One of our domains is constantly marked by Outlook as SPAM, despite the adequate setup that is reported as properly configured and validated by many on-line tools, among those, the mxtoolbox. Please ...
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Unable to configure apache proxy with HTTPS

I have an apache proxy server used to redirect my HTTP website to different servers. Everything works well for HTTP websites. I have an Exchange Server 2013 and I would like to access OWA (https://my....
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enabling TLS with SMTP on Exchange 2016

I have an Exchange 2016 server with self signed certificate, the issue is that when I send a mail to gmail it goes to spam and saying "message not encrypted". I have assigned the certificate to SMTP ...
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Office365, Outlook on the web and unjunk filter

A customer of mine recently moved its mail infrastructure on Office365 and Outlook on the web. All is working properly, but we have a problem with automatically sent log/alert email. Basically, we ...
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Certificate Error since Migrating to new Exchange 2007 Server

I just finished moving mailboxes last night to a second Exchange 2007 server I built (moving from physical to virtual). Clients are pointed to the new server. Getting ready to remove the old server ...
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Exchange Autodiscover not working 403, but can open Externally

Recently I've set up Exchange Server 2016, configured external DNS accrodingly. Server itself works fine, can send and receive emails. OWA is working fine aswell (externally and internally). Issue is ...
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Remove OWA https redirection

I have two servers connected to the same IP address. One is an Exchange Server, the other one is a Synology. I would like to set up a redirection so when users go to https://server.domain.com they ...
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Outlook Web Access Password Expiry Notification - Default Settings

Where can I find the default days of when Outlook Web Access will give me a password expiration notification. Or is this directly related to the AD Policy that is in GPO Thank you in advance for ...
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How can we use HubSpot or HighriseCRM with Office 365 and German MS Cloud?

We use Office 365 with the additional option of being hosted in the german MS cloud. Now we would like to connect our CRM tools (HubSpot and HighriseHQ) with Office 365. Unfortunately those tools ...
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Accessing pst files of a removed mailbox without import

Good day, Is there any way to open a pst file located on my exchange server, from an outlook client (or OWA), without importing this pst file to the client's active mailbox? P.S: the server is in a ...
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Access "Exchange Web Services" from Outlook Mobile (failing that, Outlook)?

I am aware that there are various protocols by which MS Exchange exposes access to services - including: EAS : Exchange Active Sync - A proprietary protocol that appears to be the default option for ...
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Show read-only rooms calendar in Exchange 2013 OWA did't work

We have recently migrated to Exchange 2013 from Exchange 2007 and everything seemed to be ok. Users can access their mailboxes via Outlook and OWA,it was tested and working. However we have several ...
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Cannot log in to Exchange server from MS Outlook but OWA

we were assigned to deploy the Exchange 2016 mail server for our company. We are in testing phase with test environment. I set up the basic diagram with 1 AD 2012R2 + 1 Exchange 2016 mail server; ...
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Exchange 2016 OWA URL switching to External URL

We are seeing an odd issue with a newly deployed Exchange 2016 in an Active-Active configuration. There are two sites, each with 2 Exchange servers. The DAG spans the 4 servers, with Active mailboxes ...
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How to determine delete date of an email in Exchange Online

We are using Exchange Online as part of our Office 365 subscription/deployment. Clients are using OWA and Outlook 2016 client for Exchange access. As part of a legal dispute we are trying to ...
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Exchange 2010 OWA not working

So here's an interesting problem that just started happening today. OWA is no longer working on the internal network or Externally. I now get an error in IE saying: "Turn on TLS 1.0, TLS 1.1, and ...
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Cannot attach large attachments although server settings would permit that

we're currently have some weird issue with our organization's Exchange Server 2010: Although on the server the attachment size is set to 55000000 bytes in the web.config file for OWA, users cannot ...
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Exchange 2010 Manual redirction

My CTO would like our Exchange environment to have an OWA URL that would direct the user to the correct Exchange server, so: Users logs into https://webmail.domain.com/owa => Page displays Go to ...
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Windows Exchange Logon Hours Restriction

So this will probably be the opposite of what most people have asked. An Internet search certainly appears to support that. I have AD users that have logon hour restrictions. I want these logon hour ...
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