BlackBerry android devices or any Google device can't connect to outlook server

This has been a very interesting discussion which has thoroughly confused me. I just received my Pixel 8 Pro yesterday moving from a Pixel 5. and started having similar problems to everyone else. I had the occasional problem on the 5 recently with my hotmail account, but seemed to work it out. I do recall having to change the port setting on the 5 at one point to get it to work again.

Anyway, the settings on the two phones are diferent and for the 8 Pro nothing I have read here thus far. I just got my 8 pro to work this morning without getting the annoying popups and authentication issues.

For the 8 Pro...The top of the settings page defaults to "Microsoft Excange Activities". For the Server Settings at the bottom...everything defaulted....hotmail email, outlook.office365.com for server, 443 for port and SSL/TLS for security. I was doing everything changing the port from 993 to 995 because I wasn't reading anything about 443. Anyway, went back to the default entered my password....didn't work the first 2-3 times, but kept hitting the check mark and it accepted it.

One other thing was I went into the outlook settings on my computer under "general" "mobile devices" deleted "Android" and then eventually it appeared again...so don't know if the old pixel was conflicting.

Not to confuse things, but the server settings on the pixel 5 are completely different with both incoming and outgoing settings. Incoming usiing the outlook server and Port 995....Outgoing using smtp server Port 587 and security STARTTLS.

Anyway all seems to be back working again. Hope some of this helps for someone

WARNING: Outlook Calendars don't always sync...

My Outlook calendars associated with my personal Outlook account, which had the sync issues, are no longer syncing with the Samsung Calendar (and therefore BlackBerry Hub+) on my S23+. I also seem to be unable to create an appointment in Samsung Calendar. The Save button doesn't work...

So, new appointments are not always being synced to outlook.com or to BlackBerry Hub+. But deletions are... This looks to me to be a problem with Samsung Calendar, which I am then seeing in BlackBerry Hub+. Manually syncing in Samsung Calendar doesn't update either outlook desktop with appointments in Samsung Calendar or Samsung Calendar with appointments created using Outlook desktop.

Apologies for this not quite perfect recollection.

I have 2 Outlook.com calendars within the same account: one for personal and one for social. I could see duplicates in the same Calendar using Outlook desktop for a set of appointments this Friday, so deleted one set. Looking back, I don't think they were duplicated in my Hub+ calendar, but can't be certain. All appointments in that time range disappeared from the BlackBerry Hub+ Calendar.

I now remember that I created a set in Hub+ thinking "didn't I do this earlier?" As I created these appointments about 2 weeks ago, I can't remember whether both sets were created on my 'phone or one was created via Outlook desktop. I have copied appointments in Outlook desktop to my work Calendar (syncs immediately to BlackBerry Hub+) and between outlook.com calendars (do not sync).

Appointments created in Hub+ sync within seconds to my work account visible via Outlook desktop.

Appointments created in Hub+ appear in the Samsung Calendar on my S23+ but are not syncing to my outlook.com calendars

Appointments created in or copied to my outlook.com calendars using Outlook desktop are not syncing to my S23+

Appointments created in or copied to my work calendar using Outlook desktop ARE syncing to my S23+ (Samsung calendar and Hub+)

I'm hoping that this is going to be resolved by re-booting my Samsung S23+. I don't want to have to re-install Calendars

And to think my reason for logging on again was to ask if someone knew how to sync Tasks? I think i just have to put them all into my work calendar from now on...

Brilliant! Thank you.

The only issue I appear to have is that two weekly recurring appointments in different Calendars on my outlook.com account are displaced by one hour in BlackBerry Hub+, the Outlook app and the Samsung Calendar, but not when I view Outlook.com via Edge on my Samsung S23+ or via the Outlook client on my PC.

This, I assume, is a daylight saving issue somewhere in my 'phone setup...

I understand your position, but I think, we also need to know the realities. MS has discontinued support for the older auth method, so they don't have anything to "fix". Regarding BB, they could update the app, but... we pay 1€ for it, for this money, this small workaround for Outlook, I won't complain.

Yes, for that part you need the Outlook app so that it syncs it for you. I think you might be able to do it with Gmail app too.