Outlook - Android - Storage Use

Something unusual has happened to my Outlook User Storage. 5 days ago the User Storage had, as usual, risen to 16GB causing the phone's memory to hit 100%, causing me to delete User Storage and re-add my IMAP account. Storage soon started rising again from a few hundred Megabytes to 10 Gigabytes. Then, just as I was expecting to again have to reset, the User Storage started shrinking. Every day it sunk about 4GB. It is now way down back to only a few hundred Megabytes. Amazing! Perhaps Microsoft has produced a fix - or it's an April Fool. I am watching to see what happens in the next few days.

I've just reloaded my IMAP account - I'll monitor how it is over the next few days.

Thanks for the tip-off

The Outlook app in my Pixel 4a has the growing and shrinking memory already since weeks. Luckily, it never reached the overload threshold of my phone anymore. Everything between 150MB and 15GB is possible.

Actually , what disturbs me way more is that since a couple days I cannot reply or create new mails with the IMAP accounts anymore! Again!! That was working for a while, now again it says, “ ERROR ADDING RECIPIENT TO MESSAGE” or “FAILED TO SAVE DRAFT TO SERVER”.

Endless pain with this Outlook app on Android! Already half a year and still no obvious progress despite a dozen updates of the app. Why? Microsoft please tell us!

My last message was 24th March - when I last had to reset my account.  Since then Outlook has been working OK with fluctuating User Storage size. That is, until today when it again went over 16GB (phone memory 100%) and I have now reset again. The good news is that it has lasted for 3 weeks instead of the usual 4-5 days. In the meantime, there seems to have been an Android update. When I re-added my IMAP account just now the interface has changed a bit. There is now an extra numeric field for entering the port number. I don't know if that is significant or if it is a Microsoft or Android change. I am watching for how long Outlook works now.

I have 3 exchange / outlook accounts plus 1 imap in outlook on my phone. Without the imap, no data sizes in the gigabytes. When I add the imap, it eventually gets to 27Gb and my phone says to reset the phone to fix the problem. This last time I watched the app size daily until, about a week after, it was up to over 10Gb again. I then removed the imap account. It stayed at 10 for a few days, then it went back to megabytes. I put the imap account in gmail and all is good. Shouldn't have to do this but it's good enough.