Outlook - Android - Storage Use

Same question here. 

Outlook consuming 16 GB right now on my Pixel 4. No space left.

Deleting User data helps few days. 

Here a table of statistics. Last time I had to "Clear Storage, Power On/Off, Re-install Account" was 20th December. By 22nd Dec the user data had shot up to 9.3 **GB.**I thought, here we go again. Then, big surprise, on 26th Dec it fell all the way back to 318 MB! Maybe a Microsoft Christmas present. Anyway, after two days in the low MegaBytes, it is now up again to 9.3 GigaBytes. I guess tomorrow or the day after it will use up all the storage and  I will have to delete user data and start again.

I've the same issue since a few weeks on my Nokia 7.2 (Android 10) and therefore opened a MS community forum entry a few days ago. Today, someone wrote me that I'm not the only one with this issue :-( It happened to me already several times.

Last time, user data was at around 15 GB. 

I had to delete the user data by using the Android Debug Bridge (ADB), as the phone OS is always freezing when I'm trying to delete that huge amount of data via the ordinary app "user data delete" button: 

1. adb shell
2. pm clear com.microsoft.office.outlook
3. After about 10 minutes, all data is deleted (process must not be interrupted)

Exactly the same experience here.

I've got two Galaxy S9s.  Both have been crashing with this problem.

I've now got two running with the same version of outlook.  One has just one email account attached - as MS exchange one - and the other has that account and a SMTP account attached too.  The second one has just crashed again after two days - storage had grown to abut 8Gb - which seems to be the limit for the phone/OS combination before it stops working.  Now reinstalled it with just the one exchange account connected to see how it goes.

I've tried to raise this with M$ through the help feature in outlook on the phone - but apart from the acknowledgement, I've had no follow up from them.

I hope somebody can find a fix for this.

Exactly the same experience here.

I've got two Galaxy S9s.  Both have been crashing with this problem.

I've now got two running with the same version of outlook.  One has just one email account attached - as MS exchange one - and the other has that account and a SMTP account attached too.  The second one has just crashed again after two days - storage had grown to abut 8Gb - which seems to be the limit for the phone/OS combination before it stops working.  Now reinstalled it with just the one exchange account connected to see how it goes.

I've tried to raise this with M$ through the help feature in outlook on the phone - but apart from the acknowledgement, I've had no follow up from them.

I hope somebody can find a fix for this.

I have a Pixel 3 XL with 64GB. For the last 10 days I have a slightly new effect. After I have to reset "Clear Outlook storage, Power On/Off, Reinstall account" the User Data stays at about 300-400 MB for a couple of days then shoots up all of a sudden to 9-10 Gigabytes, near the boundary of crashing the system by using up all 64GB (100%). Then suddenly, shoots down again to 300-400 Megabytes for two days. The cycle then repeats 2 days very low, 2 days very high. I am waiting for the next high to cause a necessary account reset. I guess this must be a Microsoft problem, not Android. I wonder what Outlook is up to. Maybe downloading all Archives for some unknown reason???

Exactly the same experience here.

I've got two Galaxy S9s.  Both have been crashing with this problem.

I've now got two running with the same version of outlook.  One has just one email account attached - as MS exchange one - and the other has that account and a SMTP account attached too.  The second one has just crashed again after two days - storage had grown to abut 8Gb - which seems to be the limit for the phone/OS combination before it stops working.  Now reinstalled it with just the one exchange account connected to see how it goes.

I've tried to raise this with M$ through the help feature in outlook on the phone - but apart from the acknowledgement, I've had no follow up from them.

I hope somebody can find a fix for this.

I have a Pixel 3 XL with 64GB. For the last 10 days I have a slightly new effect. After I have to reset "Clear Outlook storage, Power On/Off, Reinstall account" the User Data stays at about 300-400 MB for a couple of days then shoots up all of a sudden to 9-10 Gigabytes, near the boundary of crashing the system by using up all 64GB (100%). Then suddenly, shoots down again to 300-400 Megabytes for two days. The cycle then repeats 2 days very low, 2 days very high. I am waiting for the next high to cause a necessary account reset. I guess this must be a Microsoft problem, not Android. I wonder what Outlook is up to. Maybe downloading all Archives for some unknown reason??? 

This time it took two weeks. Now, again, storage usage at 100% and mobile telling me it can no longer work until storage is reduced. My "Clear Outlook storage, Power On/Off, Reinstall account " was on 20th Dec. Since then the Outlook User Data has swung around between 318 MegaBytes to now 17.21 GigaBytes.

Dear Microsoft, if you follow these comments PLEEASE do something! 

Here my statistics: