Having issues with email deliverability to Outlook
Hi, For some reason, our main domain got in a couple of blacklists (according to some email deliverability test platforms) and we, from time time, go to spam and our clients don't get our emails. This happens primarily with Outlook inboxes and our…
How to recover a lost Task in Outlook2021 Professional Plus
My lost task is not in Deleted items nor is it in Junk mail. I cannot find recoverable items and I get no choice to "restore" in any of these places. I can replace it from a backup but my last backup is very old and the task is updated almost…
sending email failed
thats error is showing when i send email to another email address " Delivery has failed to these recipients or groups: [andrew566174f94a@gmail.com] This message couldn't be delivered because the sending email address was not recognized as a…
sending email failed
thats error is showing when i send email to another email address " Delivery has failed to these recipients or groups: [andrew566174f94a@gmail.com] This message couldn't be delivered because the sending email address was not recognized as a…
How to fix "This message couldn't be delivered because the sending email address was not recognized as a valid sender" error
When trying to send an email, I receive an error message stating "This message couldn't be delivered because the sending email address was not recognized as a valid sender. The most common reason for this error is that the email address is, or was,…
Accessing Outlook and Hotmail from other applications
I have a Hotmail account and an Outlook account. I normally use my app on my smartphone, or my Outlook on my PC. However, I also need to configure Thunderbird Portable and a small app that simply checks for emails in my various mailboxes. Thunderbird and…
Error: "OrganizationFromTenantGuidNotFound" (even with Microsoft 365 subscription)
I'm trying to get the events from outlook calendar but I get an error doing so. I have an app registered on Azure Portal (free plan), which I'm using to read the events with Nodejs. This are the permissions I've set in order to be able to query the…
Need assistance with moving Outlook add-ins that use legacy Exchange tokens to nested app authentication
Hello, Please i need your help on this issue. I will need assistance with moving Outlook add-ins that use legacy Exchange tokens to nested app authentication. I need assistance with implementing required changes as per this article:…
Need assistance with moving Outlook add-ins that use legacy Exchange tokens to nested app authentication
Hello, Please i need your help on this issue. I will need assistance with moving Outlook add-ins that use legacy Exchange tokens to nested app authentication. I need assistance with implementing required changes as per this article:…
How to get my HTML Outlook signature working on a mobile either on iOS or android
The question is simple. I ca Create my signature in that desktop outlook application. But they don’t work on mobile or tablet. Can you help with that?
Availability of OnMessageReadWithCustomHeader for Web and New Outlook on Windows
Hello, I would like to know when the OnMessageReadWithCustomHeader events will be available for Outlook on the web and the new Outlook for Windows. This feature is essential for our workflow, and we would appreciate any insights on its expected rollout…
Duplicate calendar events in Outlook 365
When I set a meeting for sales I put my notes in after the meeting. Then, when I am scheduling the next meeting I search for the last meeting and duplicate it then change to the new date. Now the most recent meeting has all the notes to that point. How…
Duplicate calendar events in Outlook 365
When I set a meeting for sales I put my notes in after the meeting. Then, when I am scheduling the next meeting I search for the last meeting and duplicate it then change to the new date. Now the most recent meeting has all the notes to that point. How…
Outlook for mac not syncing flags to Mail app or Gmail online
I'm using Outlook for mac Version 16.89.3 without license with gmail for my business account. Sometimes I also use my Mail app on my MacBook pro (Sequoia 15.1.1) for the same account. The problem is that when I flag or unflag message in Outlook the…
VBA Outlook: AddressList.AddressEntries collects only the first 500 entries of address list
I am using O365 classical outlook on Windows 10 Considering classical VBA code bellow, AddressList.AddressEntries only collects the first 500 entries. Indeed, browing "All Users" global list in Outlook AddressBook Window, I see the same last…
Greyed Our Report Phishing Button
Dear Team, I have installed the report phishing button using my group administrator account and i want to enable it only for my account for testing purpose. However it is been more than 12 hours since i installed the add in from the integrated app…
Having trouble getting my Outlook Add-in manifest to work
Hello, I'm trying to develop an outlook add-in for my company that detects if there are external recipients in the to, cc, or bcc columns. I have developed all of the necessary files (HTML and JS) but I have not been able to figure out how to organize my…
"FROM" option is missing from Outlook Calendar
I can't seem to find the "From" option in Outlook 365 calendar, has it been deleted? I can see "From" when I send an email, but not in Calendar?
Can't see Teams meeting button in outlook
The Teams add in is active in my outlook but i still cant see the Teams meeting button in the outlook what can i do?
Custom Add-in Publishing
Our department developed an add-in to log email data, so we released the app in the admin center, but the desktop client didn't show it. How to solve the problem that the add-in is not deployed successfully?