Outlook for office 365 not synchronising

[monk1000]

My @Sky email address in outlook for office 365 stopped synchronising with sky mail a week ago.

I have deleted the account and  re added it with a new app password. It sends test messages bur wont synchronise my folders.

It reports the following errors.

20:04:03 Synchronizer Version 16.0.16626.20086

20:04:03 Synchronizing Mailbox '*@sky.com'

20:04:03 Synchronizing local changes in folder 'Inbox'

20:04:04 Error synchronizing folder

20:04:04                                 [800CCC0E-0-0-430]

20:04:04 Done

Any thoughts?

[Mark39]

If you Google the error reference there seem to be several possible causes.

[monk1000]

Thanks

Have tried a few of them but did not help.

[jayach]

It may be that some Outlook files are corrupt, you could try a repair.

Repair an Office application - Microsoft Support

[monk1000]

Hi 

Thanks for the suggestion.

Outlook is not in my app list I think as its part of microsoft 365. A search for outlook comes up empty.

Thanks again

[jayach]

@monk1000 

Your error message suggests that some setting you are using is incorrect. so are you using these settings for the Incoming Mail (IMAP) Server:

Server - imap.tools.sky.com or imap.mail.yahoo.com
Port - 993
Requires SSL - Yes

SPA - off

And using a generated password: https://www.sky.com/sky-yahoo-mail/manage-apps

Perhaps depending which server you are currently using (Sky or Yahoo), it might be worth trying the other.

When using the Yahoo servers your username has to be the full sky email address.

[monk1000]

I think I hit the wrong button.

Thanks for the response.

Yes have checked all of those fields and the outgoing settings.

smtp.mail.yahoo.com

Port 465

SPA disabled. 

Outgoing server requires authentication enabled with use same settings as incoming server selected. 

If I go in to the account settings via the control panel and Mail (Microsoft Outlook) I can get to the end and it will log onto incoming mail server and send a test message.

If I try to do the same via the Outlook App, all the settings above are the same , it comes up with an error message.

[jayach]

These are the settings in my Outlook 2019, are yours the same?

 

[monk1000]

Hello

thanks for the response 

Yes those are exactly the settings.

As I said previously if I access the settings via the control panel and Mail (Mikcrosoft Outlook) option everything works fine. Can send test messages etc.

Its within the outlook app, which is the part of Office 365 that I cant get anything to upload or download in my sky account. 

All my other accounts work fine.

It all started with a send receive error so deleted and added the sky address with the app passowrd and still no joy.