What is causing the “Mail Recipient” to stop working on Windows?

We investigated this particular issue by looking into various user reports and trying out different fixes that affected users have successfully deployed to resolve the ‘Mail Recipient’ issue. As it turns out, several different scenarios can trigger this particular problem. With this in mind, here’s a shortlist of potential culprits that you should look after: If one of the scenarios above seems plausible and you’re currently looking for a fix capable of resolving this issue for good, this article will discuss several potential troubleshooting guides. Down below, you’ll find a collection of methods that other users in a similar situation have successfully used to resolve this problem and restore the normal functionality of the ‘Mail Recipient’ Feature. If you want to be as efficient as possible, we advise you to follow the methods below in the same order that we arranged them in, since the fixes are ordered by efficiency and severity. If you follow them in order, you should eventually stumble upon a series of steps that will resolve the issue, regardless of the culprit that’s causing the problem. Let’s begin!

Method 1: Circumventing the problem via Share function

If you’re looking for a quick and painless fix, the most effective way of getting around the issue is to use the Share function instead. As it turns out, the ‘Send to Recipient’ function is broken for a lot of Windows 10 users. In most cases, this happens because the Mail app (the default email client on Windows 10) doesn’t get recognized as a Mail app by Microsoft’s operating system. This is very strange and has been a recurring issue for at least two years now. Fortunately, you can still add any files to a Mail attachment automatically by using the Share function instead. If you want to circumvent the problem without addressing the issue, here’s a quick guide on using the contextual Share function to add an attachment automatically to the Mail app: If you’re looking for a permanent fix rather than a circumventing method, move down to the next method below.

Method 2: Installing an email client

As we already established above, you need a viable email client that gets properly recognized by your operating system, since the default Mail app doesn’t fall into this category (for some reason). As some other affected users have reported, you will be able to resolve the issue by installing an email client that knows how to work with the Sent to Mail Recipient function on Windows. There are a lot of alternatives, free or paid, but you should choose one that you are already comfortable with so that the learning curve is minimal. If you have the means, go with Outlook as it works without any problems with the Send to Mail Recipient function, but there are also other alternatives if you want to step outside of Microsoft’s ecosystem. Here are some free alternatives to consider:

MailbirdThunderbirdMailSpringeM Client

Note: Regardless of the client you choose, you’ll need to configure it to become your default email client to use the Sent to Mail Recipient feature. Consult Method 3 for steps on doing this. If you already have an email client but you’re still unable to use the Sent to Mail Recipient feature from the context menu, move down to the next method below.

Method 3: Configuring email client as the default app

If you already have an email client but you still can’t use the Send to Mail Recipient function, there’s a high chance that this happens because the email client is not recognized as the default app for email. This can be rectified very easily from the Default apps menu. Several affected users that were also struggling to resolve this issue have reported that they were able to fix the issue entirely after accessing the Default apps menu and changing to Default app for Email according to their preferences. Here’s a quick guide on setting the email client as the default app: If you’re still having the same issue or you don’t want to change the default email client, move down to the next method below.

Method 4: Resolving the Outlook Synchronization error (if applicable)

If you have Outlook installed and it’s functioning normally (outside of this broken function), chances are the system is suffering from a synchronization issue that seems to be quite common on a lot of Windows 10 systems. As it turns out, the issue is occurring due to a series of corrupted registry keys that need to be refreshed to resolve the normal functionality of the Send to Mail Recipient function. We managed to find several reports where affected users have confirmed that the issue was resolved after following the steps below. Here’s a quick guide on resolving the Outlook Synchronization error using Registry Editor: If the problem persists, move down to the next method below.

Method 5: Repairing the Office installation (if applicable)

As it turns out, if you have Microsoft Outlook configured as your default email client, the issue can also occur due to a corrupted installation. Several affected users have managed to resolve the issue by using the Programs and Features wizard to repair the Office installation. After doing this and restarting the computer, several users have reported that the issue was resolved completely. Here’s a quick guide on repairing the Office installation:

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