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

Outlook Error: Either there is no default mail client or the current mail client cannot fulfill the messaging request...

When using one of the NirSoft tools that work with Microsoft Outlook (OutlookAttachView, OutlookStatView, OutlookAddressBookView, NK2Edit) you may get the following error message:
Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Office Outlook and set it as the default mail client.

This error is not displayed by NirSoft tools, it's displayed by Microsoft Outlook when NirSoft tool tries to activate the programming interface of Outlook, known as 'Extended MAPI'.

In order to solve this problem:

1. Check if you use the right version of NirSoft tool (32-bit or 64-bit): If you have Outlook 32-bit, you must use the 32-bit version of NirSoft tool (Even if the operating system is 64-bit !). If you have Outlook 64-bit, you must use the 64-bit version of NirSoft tool. If you don't have the right version, simply go to the Web page of the NirSoft tool you use and download the correct version.
   Here's the links to Web pages of Outlook NirSoft tools: OutlookAttachView, OutlookStatView, OutlookAddressBookView, NK2Edit
2. If you have the correct version of NirSoft tool and you still get this error message, Microsoft Outlook software is not installed correctly on your system.
   In this case, you have to repair the installation according to the instructions on Microsoft Web site.

1.    New 08 Apr 2020 #1

   Default mail client warning

   
   I keep getting the warning below, although I have Outlook as the default mail client. How can I stop getting this warning.

   Thank you in advance for your help.

   dgo47

   

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3. Posts : 36,195

   Win 10 Pro (21H2) (2nd PC is 21H2)

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4. Posts : 1,507

   Windows 10 Pro

      New 08 Apr 2020 #3

   
   What version of Outlook/Office ? This error has brought back memories from a bygone era.

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6. Posts : 10

   Windows 10

   Thread Starter

      New 08 Apr 2020 #4

   
   Thank you all for your help. I have followed the advice of changing the Register and it appears to have done the trick.

   dgo47

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7. Posts : 36,195

   Win 10 Pro (21H2) (2nd PC is 21H2)

      New 08 Apr 2020 #5

   
   

   

   glad you found a way forward.

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8. Posts : 70

   Windows 10 Pro

      New 27 Jun 2020 #6

   
   I also have this problem. Tried all three solutions. Tried the regedit solution, I don't see any subkey. Any ideas?

   I am using the latest Outlook (part of my institution office365 subscription) on Win 10 Enterprise N

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Problem

This technote explains how to resolve an error message that there is no default mail client that could occur in IBM® Rational® ClearQuest® when submitting a record.

Symptom

Received the error below when submit of a record that trigger e-mail notification
[code>]
Either there is no default mail client or the current mail client can not fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client.

Cause

This error is known to occur when using Microsoft® Outlook, and it has not been set as your Default mail client and Microsoft Internet Explorer has not set Outlook as the default program for email.

Resolving The Problem

When using Microsoft Outlook as your e-mail application and Microsoft Internet Explorer as your browser, you need set the default mail in both Outlook and Internet Explorer.

1. In Outlook, go to the Tools > Options > Others Tab. Within this dialog box, make Outlook your default e-mail program.
2. In Internet Explorer, from the Tools menu, select Internet Options. On the Programs tab, select Microsoft Outlook for the E-mail option.
3. Click the OK button to save your changes.

[{"Product":{"code":"SSSH5A","label":"Rational ClearQuest"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"E-Mail Configuration and Setup","Platform":[{"code":"PF033","label":"Windows"}],"Version":"2003.06.00;2003.06.10;2003.06.12;2003.06.13;2003.06.14;2003.06.15;2003.06.16;7.0;7.0.0.1;7.0.0.2;7.0.1;7.0.1.1","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

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