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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71 views

Outlook not properly displaying html emails

After a power outage (possibly complete coincidence but suspicious) outlook 365 (desktop version) on 3 different windows 10 machines (same windows account), will load but not display html emails. Non ...
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Outlook 0x80040115

I've been having very intermittent issues with Outlook and have not been able to find a solution. Being so intermittent, it's difficult to troubleshoot since it goes up and down frequently on its own, ...
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1answer
20 views

How can I check & configure Exchange 2013 for sending Encrypted messages to external Email address using Outlook?

One of my user wants to send encrypted messages to external vendor so he requested IT department that how he can do this? I have configured my Outlook from Files-> Options -> Trust Center ...
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41 views

Mobile Outlook not working for one account

I have ONE account that is not syncing on mobile devices, either Android or iPhone. Other accounts work fine on both devices. So by process of elimination, it is apparent that it's the specific ...
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1answer
30 views

Some versions of Outlook can't log into port 993 (imaps)

I'm using dovecot. I'm having a hell of a time with some versions of Outlook not being able to log into my server over port 993. These clients have to use port 143 and with ssl = required and ...
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3answers
88 views

Login to https site from Windows without specifying domain

I have added a network calendar (served by radicale) to Outlook: Now a Windows security message is raised asking for login credentials. However, the domain of the computer is automatically added ...
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1answer
36 views

Sent items do not appear in the “Sent Items” folder in Outlook for Desktop, Outlook Mobile (iOS), or Outlook 365

One of our users is no longer able to see any mail in his "Sent Items" folder. When he sends out a message it sits in the Outbox until he manually selects "Send/Receive" from the ...
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1answer
34 views

Can MS Exchange Autodiscover service share same domain as website?

I have a client that wants (or needs, not sure) to use the MS Exchange Autodiscover service on their naked domain https://example.com. Their IT person has asked me to place (move) their new in-...
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1answer
25 views

Is dovecot compatible with Outlook's “Leave on server for X days” setting?

I've got a linux box running dovecot/postfix. I was surprised to learn that a client that had many GBs of email was running POP3. I thought they must have been using IMAP. But it turns out the server ...
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1answer
39 views

Rule - Search for my name in outlook messages but ignoring the text inserted in replies

I get a lot of junk emails that require no action from me so I wanted to filter out those that have my name in the body/subject and put them into a special folder. I realized after creating the rule ...
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72 views

Overwrite sender (From) when replying or making a new mail

We are looking for a way to overwrite the sender (From) when the user opens a new mail or replies to one. We found a tool (Bells&Whistles) which provides exactly what we need, unfortunatly they ...
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1answer
27 views

Can an owner of a group in Outlook 365 delete the email history of that group?

In Outlook365 one can create email group. People in the group can be "members" or "owners". Owners have privileges such as being able to add new members or even delete the group ...
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63 views

Postfix. SMTP (Send only) remote authentication

So I have enabled an Ubuntu Server 20 in the cloud with a dedicated public IP, and I want to use it as a SMTP server for MyDomain.com. I have setup DNS and PTR, so this server is mail.MyDomain.com I ...
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Outlook 2019 Calendar wont sync updates

I have an issue on some users with Outlook 2019, which Calendar won't sync updates on meeting. Outlook is connected to Microsoft Exchange 2016 On-prem. So, meeting was created by User A, and User B ...
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1answer
451 views

I'm getting “The server response was: 5.7.57 SMTP” When using an Office365 hosted Email on my SQL Database Mail

The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 2 (2021-02-01T13:38:08). Exception Message: Cannot send mails to mail server. (The SMTP ...
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35 views

Salesforce Outlook add-in missing formatting/CSS on internal network

Example Image of how it looks Info Windows 10 1909 or newer Microsoft Office 2019 64-bit Fortigate's running 6.4.2+ We've recently started rolling out Salesforce to external locations, but for two ...
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0answers
46 views

dovecot - preventing outlook creating folder when language is changed

I'm running a dovecot server and noticed when users changing the Windows/Office language to german Outlook creates an additional folder 'Entwürfe' - which is shown in the maildir folder as: rwx------ ...
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1answer
83 views

Active Directory Group Policy - Allow Outlook through proxy settings

I am trying to allow access to Outlook(MS Office Standard 2016) access through an Active Directory Group Policy proxy I have created. I am allowing a specific set of websites to a specific set of ...
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1answer
174 views

Outlook 2016 ignoring cache ost settings

Under account settings Outlook2016. One has the option mail to keep offline in the gui, to cache Email. Problem: For unknown reasons it stays at 1 month or all time. One should be able to alter the ...
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1answer
49 views

Outlook status is bounced after sending email from my own server while gmail status is sent

In ubuntu, I'm using postfix and dovecot to deliver email from my server. I've set DKIM, SPF and all other stuff. I have my email tested from https://www.mail-tester.com and got 10/10 point. When I'm ...
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28 views

Location of move mail folder items in Outlook

Can anyone confirm where in Windows 10, Outlook 2016 or Exchange on premise the list of folders that appear when a user right clicks on a email message and selects Move is generated from? I've tried ...
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1answer
257 views

Outlook cannot send when connected to IMAP, but it can send mail if I connect it to POP3

If I connect outlook to port 465 with the same details, but for the mailbox, if I use IMAP, it won't send. If I use POP3 for the mailbox, it is able to send. And, I have postfix and dovecot installed ...
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1answer
154 views

Office 365 Keeps prompting for password and forgetting outlook passwords

I have an education license for MS Office 365 that I can use on 5 devices. On three devices it works fine. Installed on PC (Win 10) at home and it works fine for an hour maybe more, after which word/...
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93 views

Get list of Outlook Favorite Item via Powershell

Hy Guys, I Trying Get list of Outlook Favorite Item via Powershell, but i couldn't, I have created the script for Inbox and others, it's working, but having trouble with favorite item, can anyone help ...
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102 views

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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1answer
60 views

Does Dovecot make Foxmail / Thunderbird / Outlook to receive duplicated email?

I've built a Postfix(2.10.1-7.el7.x64.rpm) + Dovecot(2.3.11-build) mail server for my host. It functions well for me at the very beginning. After using for a while, I kept receiving duplicated mails ...
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1answer
382 views

Outlook / Exchange “Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened. The operation failed.”

At a customers site there is an old Network with Exchange 2016 and a new Network with a fresh Exchange 2016 installation. There was a planned move last weekend. Using the old network outlook most of ...
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1k views

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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56 views

Strange Outlook Addressing problems

We are seeing a new problem with Outlook this past month. Outlook is generating email messages with valid envelope recipients, but INVALID Body Header recipients. Because a receiving user replies on ...
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1answer
41 views

How to let webmail show html part of an email?

I send an email which has a text mime part and a html mime part. When I receive the email using a client app such as Windows Mail, the html version of the email is shown in the client, which is good. ...
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433 views

Configuring sendmail to send email to Outlook server

Currently, I'm using Redhat distro and I can send emails to Gmail server with sendmail but when I try to use Outlook server it generates the log below in maillog file. (outlook_sender@mydomain send to ...
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2answers
1k views

How to setup a default signature for a Shared Mailbox in Exchange and Outlook

In this scenario, we have users who use a primary user mailbox as well as a shared mailbox. They wish to have default signatures for each mailbox. However, when going into Outlook Options > Mail &...
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531 views

Outlook unable to save email message receive not enough memory

I have a user that is trying to save an email message in outlook 365 connected to exchange 2010 without cache mode. The email contains a trail of several replies and attachments resulting in the size ...
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2answers
72 views

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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3answers
149 views

Exchange Online: ancient auto-reply message hidden somewhere and gets sent alongside current one when auto-reply is enabled

Title says most of it. Have used Get-MailboxAutoReplyConfiguration in Exchange Online PowerShell and it only shows the current auto-reply message. But when auto-reply is enabled, one from a few years ...
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1answer
133 views

can't send email to masking domain in Office 365

i have some issue here. first i have office 365 and domain xxx.com . im already masking office 365 xx.onmicrosoft.com with my domain xxx.com. here are my MX Record : https://prnt.sc/ti1kqr i can't ...
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1answer
184 views

Microsoft Office 365: Room resources from external domain

Two Orgs: A and B, both on Office 365 Email. Org A has list of physical meeting rooms available on-demand for booking and use by whitelisted email@domains Org B has users who want to: Search and find ...
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2answers
637 views

How to unblacklist an email at Microsoft/OutLook/hotmail

When trying to send email to clients who use Hotmail/Outlook/etc type email addresses, I get the following error: SMTP error from remote mail server after RCPT TO:some@email.com: 550 5.4.1 Recipient ...
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1answer
85 views

Emails automatically saving to exchange

I have a user who when they open a .msg file from the file server with Outlook if they close the file it asks if they want to save. If the user hits the no button the email is then saved to the user's ...
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1answer
56 views

Outlook 365 meeting requests received & marked tentative automatically, but the actual request going to delegate

In Outlook 365, my boss receives meeting requests that are being marked tentative automatically, but the actual request is coming to me as her delegate. She cannot respond to the invite.
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2answers
4k views

Microsoft Outlook Inbox Repair Tool keeps popping up

I ran into this weird issue with one of my users. Microsoft Outlook Inbox Repair Tool keeps popping up every time she starts Outlook, even after the repair is done, the Outlook still won't start. At ...
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4answers
335 views

SSL certificate expired error when connecting to corporate email

Since root SSL certificate expired on May, 30, I am unable to fetch any email from my corporate Microsoft Exchange server using evolution email client, and the error message says just that ssl ...
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1answer
848 views

MS Outlook keeps not responding when requesting data from Exchange

Looking for some pointers on this one…. MS Outlook keeps not responding when requesting data from Exchange The setup up… Three locations: one is the head office running Windows 2016 servers (AD ...
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1answer
194 views

Outlook for Mac - Messages in Sent Not Actually Sent

Environment: Outlook 2016 for Mac. Outlook 2016 for Windows on Windows 2016 Server using RDS. Problem: A message is sent from Outlook on the Mac and goes into the Sent folder on the Mac. The message ...
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1answer
114 views

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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1answer
27 views

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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1answer
110 views

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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576 views

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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86 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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41 views

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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