Windows 10: windows 10 Mail app is not displaying sent body text, or newly sent items since Win10 ver 2004

When an email is sent using Mail since upgrading to Win 10 ver 2004, Mail is not showing sent items, or displaying body text of previously sent items. This is with Gmail accounts, Hotmail seems OK.
The app has been both reset and re-installed, with no change.

:)

 

Issue with Mail app Sent Items

Using the default Mail app, I checked my 'Sent Items' and all mails since the start of the month show as sent but the date / time they were sent shows as: 'Sending...' when first clicked on, then that changes to: 'Still working on it..' after 60 seconds or so.

Older Sent Items show OK, everything up to the start of this month has the time / date the mail was sent. I've contacted some of the mail recipients and most have received the emails, one or two haven't but I can't tell from checking Mail > Sent Items.

I've deleted and recreated the accounts in the Mail app but same issue, mail looks to have sent but shows 'Still working on it...' for the date / time is was sent

 

Mail app not displaying sent emails in folder


I've added an IMAP account provided by an institutional server (****@fidas.org). I've checked that sent items are stored correctly when working on Windows Live Mail or from webmail.



This is not the case with the new Windows 10 metro mail app, sent emails don't show in any of the sent folders I've created.



I've been struggling with the issue for quite a long time. My mail provider does not know where the issue might be. I believe it is somehow related to the name the windows mail app gives to the folder for sent items. If I knew the exact name of that folder I could create a folder with that name through the webmail page and finally have all of my devices properly sync.

I've talked to the technical service and they adviced me to switch to another mail provider app. I would prefer not to do that because I like the integration with People and other windows apps.



Thank you.

 

Windows mail sent box problem

I have set up a friend's laptop to use Windows Mail (Windows 10 ver 1903). Sending and receiving emails works fine but sent emails do not appear in the sent box and there is nothing in the spam box either, which seems unusual. I cannot find anything wrong in settings - any suggestions please.