Questions tagged [outlook]

Outlook is a standalone or groupware client for Microsoft Exchange. It is used for Email, contacts, tasks and calendar.

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Outlook 2010 can receive but not send - authentication fails - Thunderbird works

After the mailserver was upgraded from CentOS6 to CentOS 7, Outlook 2010 on Windows 7 can receive email but not send, the error says authentication failed. However Mozilla Thunderbird can receive and ...
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Office 365 migration PST

I can't migrate from Outlook to Office 365. In fact , I can't get into the cloud. My version of 365 is E1 It tells me that I am not authorized to identify myself on Azure while it is my admin account....
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How to reduce Microsoft Exchange suggested time minimum duration?

Microsoft Outlook, using Exchange backend has the ability to suggest a meeting time regarding all attendees agenda. If the meeting has a duration less than 30 minutes, the assistant is not able to ...
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Outlook send mail from different domain (Office365/G-Suite)

Here's my situation. Our main domain is example.com setup on G-Suite. We also have a secondary domain example.org setup on Office365. When someone emails user@example.com, it gets forwarded to user@...
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29 views

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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Exchange2013 only works with Phones, Webmail, and Windows 10 Mail Client, Everything BUT MS OUTLOOK

So we recently upgraded our on premises server exchange 2013 to the latest roll-up, I also think its important to note that, we use office 365 for various things (but not email obviously) Mobile ...
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1answer
48 views

Unable to forward messages from outlook to gmail

https://docs.microsoft.com/en-us/exchange/recipients/user-mailboxes/email-forwarding?view=exchserver-2019 I referred the above tutorial to setup email forwarding in exchange. It was working fine when ...
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Purge Outlook of Emails from Deleted Items and Drafts [closed]

I am looking for a powershell script to purge my email of over 185,000 emails in Deleted Items and 190,000 in Drafts. Please is there any powershell script I could use to accomplish such a task? The ...
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Desktop email client issue in Outlook

One of the user has sent an email Which was not delivered to the recipient. I can trace the email and found the "connection timed out " error in messages logs. Is there any way that user can get to ...
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65 views

Outlook Exchange Server

Working in a 2019 Domain Active Directory, running 2019 Exchange Server, using Office Professional Plus 2016. Adding a new account to Outlook, connect to exchange using autodiscover, the process ...
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Exchange Run script when mail is sent to specific mailbox

I am working on a project where we get customer feedback for performed services vie email from a form on an external hosted web server. Because there is no connection between the web server and the ...
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1answer
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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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Outlook (Pro Plus 2019 VL) - No SSO / MFA / 2FA / Modern Auth Prompt

Can anyone help me out with this. I've had no problem doing this for years, however yesterday I installed a fresh copy of windows 10 pro (MS download tool), and installed a fresh latest copy of Office ...
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Outlook won't recognize ssl certificate (iredMail mail server)

I have installed iRedMail on a server and have set it up with a bought SSL certificate from Comodo/ Sectigo. When I connect my users to the mail server with Outlook I get "The server you are connected ...
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1answer
35 views

How to back up cloud Exchange mailboxes from the client side, without access to the Exchange server?

I admin about 50 users on the Sherweb.com cloud Exchange platform. After an experience today, where a mailbox was deleted accidentally, I discovered that Sherweb's recovery/backup practices only ...
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Migrate an on-prem AD DL Group to Pure Office 365 DLs

Can anyone advise if there is a way to migrate on-prem AD groups to pure Office 365. In our environment we have a hybrid configuration which uses AD Sync to synchronize ad objects to Azure. So we ...
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1answer
35 views

Can't Save/Edit Calendar Appointments-All are tagged with “Follow Up By”

having a very weird issue with a user who is unable to save or edit calendar appointments in her own calendar. User has an Office 365 mailbox and is using Outlook 2019 on a Windows 10 workstation. ...
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Is using Outlook 365 with identical email accounts on two different servers possible?

Our company currently runs two bare metal servers. Each server has its own installation of Exim (although Exim likely isn't the problem here). Let's call them: mail1.domain.com mail2.domain.com ...
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3answers
101 views

MAPI Service Provider Breaks in Outlook 2013+ but works if Outlook opened via Script

Have a MAPI service provider that provides custom folder view in Outlook, works fine in Outlook 2010 64-bit. In Outlook 2013 64-bit and later it fails to open the folders with error Cannot expand the ...
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1answer
59 views

Outlook team calendar in overlay mode

Scenario: We are 4 employees in a team and are using outlook for emails and calendar. We as a team want to be able to have one single calendar view that displays: - the events where our whole team is ...
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1answer
74 views

Unrouteable Address with Office365

Before we get into the question, here's some context that I believe would help y'all to understand my situation better: My domain (foo.com), is owned by Network Solutions (NS), same for the DNS ...
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1answer
53 views

Retrieving Gmail Mails with Outlook - sorting labels in folders

I found a little trick on how Outlook retrieves mail from Gmail and sort the labels into sub-folders. For that I created a [Gmail] label and nested every other label underneath. It works for some ...
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52 views

O365 Emails Getting Marked as Spam when Moved to new Folder

One of our main inbound mail accounts seems to be having a strange issue where the emails are getting marked as spam, not when they arrived, but when they are moved to a folder. They are also all ...
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Problems to validate (trust) Letsencrypt certificate when connecting to mail server

I configured LetsEncrypt on Ubuntu 18.04, webs are ok, however, there is a problem validating (trusting) the certificate during sending email. It says it stopes at root certificate and cannot reach ...
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1answer
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O365 - Email redirecting to shared inbox

I have a odd instance where by an email (password reset) from one of our third-party providers is being redirected to a shared inbox rather than the user it was intended for. I can see on the ...
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1answer
60 views

Outlook for Mac O365 Exchange Online protocol used

I’m struggling to find an answer to a probably simple question but since I’m not an Exchange Admin maybe I’m looking for wrong information. What is the protocol used by Outlook for Mac to send emails ...
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Running VBA Code when an email is received - Cant easily use Outlook

Can I please ask for some support on this issue. Our client has an Exchange 2019 Server (Running on Windows Server 2019) They want to run some VBA code when an email is received to a specific mailbox ...
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1answer
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Managing MSP Tenants for Anti-Phishing Controls

I'm trying to find a simple way to report on our tenants' settings regarding Microsoft's recently introduced Anti-Phishing controls. If possible, I'm looking to find an easy GUI method to report on ...
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1answer
185 views

Outlook forwarding in shared mailbox deletes emails

I have the following Situation which I do not understand: Situation until now 1. I have a shared o365 mailbox "AppSupport" Within the mailbox there is a rule prefixing the subject line with "[...
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1answer
56 views

How to remove items from mailbox but retain them for 7 years

My organisation would like to remove all user's access to emails in their mailbox after 3 years. However, we would like to still be able to access them as admins for up to 7 years. I have looked at ...
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105 views

Exchange crashed, backups failed, only mail is on my mobile (andriod) device, is it possible to move that data to Exchange Online?

Bad weekend... I had a piece of hardware fail which spiked the power and took out my UPS which dropped my SAN and subsequently killed my Exchange 2010 server. Then I found out that the Veeam backups ...
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dkim=fail (no key for signature) receiving on Hotmail

I run my own mail server that has been running fine, but recently emails are getting caught up on SPAM and the only thing I can find is dkim=fail (no key for signature). The mail server is based on a ...
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307 views

Impossible to get Outlook 2016 to connect to Office 365 account

I have looked at many posts and articles regarding this issue, and I have tried at least half a dozen solutions. None of them work. My company has recently changed all their mail accounts to 365. ...
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728 views

Office 365 Outlook Autodiscover using a reverse proxy - bad approach?

Background. Outlook Autodiscover has a certain order of trying to figure out configuration, and it's somewhat unchangeable, at least for Office 365 users with BYOD devices: Domain apex https://...
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1answer
94 views

Mailserver sufficient to pass as non-spam with Gmail

I am coming to the point of thinking this is beyond my ability to accomplish. I have repeatedly built new servers on Digital Ocean (3 so far) with Postfix, Dovecot, DKIM, pretty much everything out ...
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1answer
38 views

Email Sent To Multiple Recipients, Looks Different to Each Recipient?

My team has been communicating with an outside party that uses Office365 encryption. When they send an email to my team, the message I see looks like this: To: teammemberA@mycompany.com, teammemberB@...
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Outlook sMIME certificates location, errors, and background work

We have an situation. Our customer can get sMIME encrypted mails and reply to that email. But when he wants to send it with new email he is getting an error message as if the recipient email does not ...
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3answers
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Why is Outlook / Exchange online no longer accepting user / password?

Starting today all our company PCs with Outlook 2016 will no longer connect to Exchange Online (Office 365 account). When opening Outlook the user / pass prompt shows up. Submitting the username and ...
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Outlook not respecting dovecot folders

I have set up a mail server using dovecot and postfix. I have used auto=subscribe in the mailbox creation in dovecot. My webmail client works fine with the folder configuration (spam folder is junk ...
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1answer
317 views

IMAP/Dovecot sync drafts folder between mail clients

I don't understand how different mail clients work with the mails inside the drafts folder. Firstly the Gmail and Outlook android app doesn't sync any drafts at all despite I selected the drafts ...
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1answer
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Outlook O365 - Concurrent Outlook session through an IP address

I'm a Firewall Administrator and am incharge of multiple locations. In location A, there are 80 users who use Outlook of O365 connecting to a specific domain. Similarly, in location B, there are 500 ...
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Pre-configured outlook 2016 profile for domain clients

I have researched using the Spiceworks community and Server Fault but I cannot fine this precise answer. A client approached me with a requirement for configuring an Outlook 2016/2019 profile ...
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1answer
177 views

Exchange REST API CORS Issue

I've created an add-in for Outlook which uses the Exchange REST API to load email headers and forward emails. In my O365 environment it works without any problem. Now I try to deploy the add-in at one ...
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1answer
529 views

Office 2019 prompts for login

We rolled out Office 2019 Professional to around 50 of our employees. A select few are not experiencing any issues, which includes me. This means all tests before the roll-out worked just fine. After ...
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1answer
159 views

Outlook 365 does not automatically add shared mailbox

Each user here has a personal mailbox e.g.: personA@company.com. Some users also have Full Access and Send As rights to a shared mailbox e.g.: shared@company.com. In Outlook 365 the user's personal ...
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465 views

How to re download old emails from Server to Outlook 2007?

I configure email in outlook 2007. we are using our own domain email. I want to download all the emails from server. But it is not downloading. we are using Pop3. I tried Send/Receiveall but not ...
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151 views

Show Office 365 alias email as recepient in e-mail client

When creating a new (shared)mailbox to Office 365 with a primary email address, you have the option to add multiple alias email addresses too. When sending an email to one of these alias addresses, ...
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Sparkpost SMTP: emails not being delivered to 0:mtccc-com.mail.protection.outlook.com

I have been hitting my head over this issue for 3 years now. We are a small ecommerce store using Sparkpost API to send email. We have problems sending email to outlook / hotmail / Microsoft365 ...
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251 views

Outlook 2016 Out-of-Office Your automatic reply settings cannot be displayed but works after 2 minutes

I have strange issue: Citrix environment: When in web browser launch Citrix receiver, new VDI launches with outlook 2016. When outlook is launched, email profile is created, email are downloaded-...
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Outlook “failed to extract credentials” message

We have some problems with Outlook and Exchange. We have a user, lets say it's user 'Trainee1'. It's linked to the mailbox 'Trainee@company.nl', and when initializing outlook, we fill in the ...

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