No default mail client" dialog appears every time eM Client starts (after update to Version 11)

[dmoody00]

Since eM Client updated yesterday, a Windows dialog titled “Microsoft Outlook” appears every time eM Client launches. It says there is no default mail client, or that the current mail client cannot fulfill the messaging request. It only appears when eM Client starts, with all other applications closed.

Details:

• I installed eM Client using the .appinstaller (packaged) version from your website, and I have been using it for a long time without this problem.

• eM Client is set as my default mail app in Windows, but the “make default” button in Settings > General > Default Programs is grayed out.

• I ran Repair from Windows Settings > Apps > eM Client > Advanced options. The dialog still appears.

• I switched the default email app in Windows to another program, restarted, switched back to eM Client, and restarted. The dialog still appears.

• I removed the iCloud Outlook add-in and ran fixmapi. No change.

• In the registry, HKLM\SOFTWARE\Clients\Mail has (Default) = eM Client but no eM Client subkey beneath it. I understand the packaged version may register differently, so I’m not sure this is relevant.

Could you tell me how the packaged version is supposed to register as the MAPI/default mail handler, and how to fix this? If there is a way to roll back to the previous version or get a standard installer, please let me know.

My Windows version is: Windows 11 Home, Version 25H2 and eM Client version is: 11.0.1201 (c416881)

[Olivia_Rust]

Hi @dmoody00, we have addressed this behavior and how to work around it in this announcement:

Outlook “no default mail client” message appearing after installing eM Client 11

Hi everyone, Some of you on Windows have noticed a pop-up appearing repeatedly after installing or updating to eM Client 11. It looks like this: 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. We want to clear up where this comes from, because it’s easy to assume eM Client is the cause. Where the message comes from This message comes from Microsoft Outlook and the Win…

[zagnoli22]

Titre du sujet : Bug démarrage eM Client 11 : Solution temporaire (Downgrade version 10 via Microsoft Store)

Bonjour à tous,

Je partage une astuce concernant la version 11 d’eM Client pour ceux qui rencontrent un message d’erreur systématique à l’ouverture.

Sachez que malgré cette fenêtre d’erreur au démarrage, le logiciel fonctionne très bien. Il suffit de cliquer deux fois pour passer l’erreur et eM Client s’ouvre normalement. Après avoir absolument tout essayé, il s’agit visiblement d’un problème interne lié à cette nouvelle version majeure.

Comment supprimer définitivement ce message d’erreur ?
Si ce bug au démarrage vous dérange, il existe une solution simple :

1. Rendez-vous sur le Microsoft Store.
2. Téléchargez et réinstallez la version précédente (10.4.5606).

En repassant sur cette version, le message d’erreur disparaît instantanément. En espérant que cela dépanne la communauté en attendant un correctif officiel des développeurs !

Bonne journée à tous.

[Olivia_Rust]

This error is caused by a conflict with MS Outlook/Windows MAPI. We have explained the cause and workaround in this announcement:

Outlook “no default mail client” message appearing after installing eM Client 11

Hi everyone, Some of you on Windows have noticed a pop-up appearing repeatedly after installing or updating to eM Client 11. It looks like this: 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. We want to clear up where this comes from, because it’s easy to assume eM Client is the cause. Where the message comes from This message comes from Microsoft Outlook and the Win…