11,815 questions with Outlook | Windows | New Outlook for Windows | For business tags

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Issue with Hotmail Delivery – 550 5.7.515 Authentication Rejection

Dear Team, We are facing delivery issues while sending emails from our domain [Moderator note: personal info removed] .COM to some Hotmail/Outlook recipients. Below is the bounce error received: "550 5.7.515 Access denied, sending domain [Moderator…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-06T05:01:34.4233333+00:00
Moiz Shaikh 0 Reputation points
edited a comment 2026-05-06T06:35:26.7733333+00:00
Hani-Ng 10,575 Reputation points Microsoft External Staff Moderator
1 answer

email DRAFT appearing in thread but all emails have been sent

On New Outlook, At the top of a thread, a header row shows [Draft]. Why is this?

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-04T23:16:54.94+00:00
BHinCM 0 Reputation points
commented 2026-05-05T23:55:29.4166667+00:00
Jade Ng 11,335 Reputation points Microsoft External Staff Moderator
2 answers

There IS a limit on categories in Outlook

Everyone was told that there's no limit on how many categories we can create in Outlook. I'm sure it is 1,000. I have 1000 existing categories and the newly created ones after 1000 existing categories will not sync. There's no warning or anything. After…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-04T16:50:07.07+00:00
RZZ 0 Reputation points
commented 2026-05-05T22:14:14.3233333+00:00
Kristen-L 12,580 Reputation points Microsoft External Staff Moderator
2 answers

Collapse All feature missing in New Outlook

Will the Collapse All feature become available again in the New Outlook version? At present, we have to collapse each category one by one. Previously, you could double-click on any category and it would collapse all. This feature is a huge time saver in…

Outlook | Windows | New Outlook for Windows | For business
asked 2025-10-30T15:20:10.5566667+00:00
Thelma Southwood 5 Reputation points
commented 2026-05-05T20:47:58.38+00:00
Brian LaMarche 0 Reputation points
2 answers

Date/time format

I have 24h clock and "First day of week: Monday" configured "everywhere": Windows regional settings Outlook BUT: Outlook Tasks is using 12h clock and "First day of week: Monday" even Outlook Calendar settings are: 24h…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-05T16:10:45.7533333+00:00
Harald-René Flasch 0 Reputation points
answered 2026-05-05T20:10:01.1+00:00
Ruby-N 10,925 Reputation points Microsoft External Staff Moderator
2 answers

Cannot add new account in desktop app

Hi, I am trying to add additional account in Outlook desktop app. Though it has been added properly on iphone app, in desktop app message "something went wrong" appears. What could be the cause?

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-05T16:15:29.3333333+00:00
Dovilė Boguševičienė 0 Reputation points
answered 2026-05-05T18:53:58.8066667+00:00
Jay Tr 11,775 Reputation points Microsoft External Staff Moderator
2 answers

Microsoft Outlook + Business Central Plug-In: issues with resizing BC window.

In the web based version of Microsoft Outlook, I am unable to resize the Business Central plug-in. The plug-in still tunnels to BC and I can still create actionable documents from email. I cannot make it wide enough to read any of the lines. This works…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-05T16:03:50.6766667+00:00
A. K 0 Reputation points
answered 2026-05-05T18:18:24.9533333+00:00
Chris Duong 8,655 Reputation points Microsoft External Staff Moderator
2 answers

New Teams not available in New Outlook

I've been looking to fix this for weeks and cannot. New Teams is not available in New Outlook. I am unable to schedule and manage Teams meeting in the Outlook calendar. Any suggested solutions?

Outlook | Windows | New Outlook for Windows | For business
asked 2026-04-22T22:35:49.8333333+00:00
Jesse Pears 0 Reputation points
commented 2026-05-05T18:08:48.5266667+00:00
Jesse Pears 0 Reputation points
3 answers

How to drag & drop from Personal email to work email

I have 2 email accounts 1 for personal use and 1 for work, I can add them both to the new Outlook, but I NEED to drag and drop emails from my personal account to my work account. I am not able to do that in the new outlook. I can in the old version. …

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-05T15:44:35.49+00:00
Kellie J Christensen 0 Reputation points
edited the question 2026-05-05T17:46:04.84+00:00
simo-k 81,030 Reputation points Volunteer Moderator
1 answer

Outlook Calendar removed all appointments, except invitee appointments

Outlook calendar deleted all appointments except for those where I am an invitee. They went missing with no warning and are not on any web, PC or phone based version, not in deleted items or found by re-syncing accounts. Just vanished.

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-04T07:49:10.5466667+00:00
F D 0 Reputation points
commented 2026-05-05T16:20:02.6+00:00
Jess-Q 10,410 Reputation points Microsoft External Staff Moderator
1 answer

Wt cld be the root cause of this recurring microsftlogin prompt in Outlook 2024 on Windows 11 despite successful domain authentication&valid Exchange connectivity?How can this issue be permanently resolved without requiring users use browsers

When configuring official email accounts in Microsoft Outlook (Microsoft 365 / Office 2024) on Windows 11 systems, users are able to successfully authenticate with their domain credentials (Active Directory username and password). The mailbox connects…

Outlook | Windows | New Outlook for Windows | For business
asked 2025-10-23T04:50:41.4733333+00:00
MJ Gowhar 0 Reputation points
commented 2026-05-05T16:18:58.0366667+00:00
Hornblower409 8,200 Reputation points
2 answers

SHARED CALENDAR

How do I make the meetings I set up appear on my Shared Calendar?

Outlook | Windows | New Outlook for Windows | For business
asked 2026-04-28T11:22:30.6566667+00:00
Alfred Lloyd 0 Reputation points
commented 2026-05-05T10:09:20.8+00:00
Julie Huynh 1,185 Reputation points Independent Advisor
1 answer One of the answers was accepted by the question author.

Delete attachments from email messages in outlook 365

I was able to delete attachments from emails in the old Outlook. Is this feature no longer available? If it isn't by default, is there a way to make this an option??

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-05T07:35:01.5933333+00:00
DonnaDJ 30 Reputation points
accepted 2026-05-05T07:37:38.5366667+00:00
DonnaDJ 30 Reputation points
3 answers

Reply All not working

One of our staff is trying to reply all from a shared inbox, however when she clicks reply all it acts like she is just replying in that it only brings up one email address. What could be causing this? Other people using the same shared inbox are not…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-04-22T02:51:55.3466667+00:00
Brendan Thomas 0 Reputation points
edited the question 2026-05-05T02:42:06.4466667+00:00
Doris V 1,600 Reputation points Microsoft External Staff Moderator
4 answers

Add multiple foldres to favorites in New Outlook.

We have a lot of subfolders in our Public folders. Is there a way in New Outlook to add all of these folders and subfolders at once? Currently it seems we would need to add each individual subfolder one at atime? This would be very time consuming. Also…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-04T17:40:57.65+00:00
Dealer 0 Reputation points
answered 2026-05-04T19:12:52.89+00:00
Dealer 0 Reputation points
2 answers

When creating Newsletter content, I am getting an error message that I'm unable to save the edition I'm working on.

On multiple instances lately, I have been building out a new Edition within an already created Newsletter. I am able to work on it, make changes, do test sends, etc., then suddenly I get an error message stating "Something went wrong while saving…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-04T14:32:24.7566667+00:00
Mapes, Meredith 0 Reputation points
edited an answer 2026-05-04T18:02:22.2066667+00:00
Alexis-NG 15,685 Reputation points Microsoft External Staff Moderator
1 answer

Outlook formatting

When is Microsoft going to have the New Outlook support basic formatting in a proper wayLike VERY SIMPLE stuff, like full support for text transformation (e.g., Upper- and lowercase), simple table formatting (e.g., alignment of elements in a table or…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-05-01T07:29:02.5066667+00:00
Jesper Egon Jensen 0 Reputation points
commented 2026-05-04T15:27:57.99+00:00
Henry-N 12,550 Reputation points Microsoft External Staff Moderator
3 answers

Can not delete single email without deleting the whole thread of same subject

Deleting OOO messages and meeting invitation replies deletes the whole thread, even conversations are off. Outlook shows messages as individual but does not treat them such. Can not delete 50 OOO messages in same subject, because whole thread of…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-04-30T11:47:29.2833333+00:00
KSuihkonen 0 Reputation points
commented 2026-05-04T15:01:59.8333333+00:00
Jess-Q 10,410 Reputation points Microsoft External Staff Moderator
2 answers

Microsoft needs to stop forcing New Outlook as default!!!!! Until features match classic Outlook

Microsoft needs to STOP forcing the New Outlook to keep reinstalling and set itself as default every time MS does an update on PCs, until every missing feature from the original Outlook is transferred to the new one. One of the main aspects of our…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-04-28T05:19:50.36+00:00
Zoe 0 Reputation points
commented 2026-05-04T12:55:35.9033333+00:00
Julie Huynh 1,185 Reputation points Independent Advisor
2 answers

MS Bookings - issue with access

I have added several staff members on to a new Bookings page I have set up. There have been no issues with most of them accepting the invite to the new page, however when one of the staff members tries to accept the invite it redirects her to what I…

Outlook | Windows | New Outlook for Windows | For business
asked 2026-04-10T14:28:33.33+00:00
Lizzie Hobbs 20 Reputation points
edited the question 2026-05-04T09:01:43.5266667+00:00
Daniel-Vo 5,645 Reputation points Microsoft External Staff Moderator