MicrosoftOutlookの送信トレイに詰まった電子メールを修正する方法

Place Outlook in Offline Mode

This is another very effective and quick method of fixing this issue. We will show how to do this in the steps below:

Step 1: On the Outlook Ribbon, click on the Send/Receive tab.

Step 2: Click on Work Offline to place Outlook in offline mode. Doing this prevents Outlook from attempting to send emails.

Step 3: Click on your Outbox folder to open it.

Step 4: Drag the email from Outbox to Drafts using the cursor.

Step 5: Back to the Send/Receive tab. Click on the Work Offline box to de-select it. This will restart your connection.

Step 6: Back to Drafts, open up the email and select Send.

Restart Outlook in Safe Mode

Outlook messages may get stuck in the outbox when an installed add-in marks the email as viewed. Starting Outlook in Safe Mode disables such add-ins from having effects on Outlook. Take the steps below to restart Outlook in Safe Mode:

Step 1: Hold down the CTRL button on the keyboard and double-click the Outlook shortcut.

Step 2: Keep holding down this button until the dialog box asking if you want to start Outlook in safe mode appears.

Step 3: Click on Yes.

Send Large Attachments Through Outlook 365

Emails can also get stuck in the outbox of Microsoft Outlook when they contain large attachments. Microsoft Outlook has limits placed on the size of the attachments you can mail. However, there are workarounds to sending large attachments through Outlook 365.