Windows 10: Either there is no default mail client or the current mail client cannot fulfill...

I've been finding a number of postings for this problem, enough to make me feel the issue is more wide-spread than one might have thought.Client uses a management application to track billable time and to send invoices to clients. Often no, not always, when she tried to send an invoice, the message pops up: "Either there is no default mail client or the current mail client cannot fulfill the message request. Please run Microsoft Outlook and set it as the default mail client." Default app settings are as they should be.I was ready to blame the management app, but today's sea

:)

 

Default mail client warning

Could you clarify the context- what prompts this? E.g. clicking on a eml file, on an email link, or is apparently at random?

I have screen OCR'd the text for you so it is now something you and responders can search for:

Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client.

These results may be of interest:
https://answers.microsoft.com/en-us/msoffice/forum/all/either-there-is-no-default-mail-client-or-the/aba95463-e552-4560-8e1b-d2058ba6aa40

[SOLVED] Either there is no default mail client or the current mail client cannot fulfill

Fix: Outlook Error Message "Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client." - TeckLyfe

See if you can identify the scenario relevant to you.

What do you see here?




If the message relates to accessing a file type check here:

 

Either there is no default mail client

Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client.

 

Mail client

After windows10 update on 4 aug 2020 I am getting the following message on start up:

Either their is no default mail client or the current mail client cannot fulfill the message request. Please run outlook and set as default client.

I went to outlook2019, file, general, startup and outlook is set as the default mail client.

Any suggestions