Summary: Outlook requires an active internet connection with the mailbox server to send or receive messages. If you are not able to send emails via your Outlook 2016 profile, you must check your internet connection. However, if the connection is fine, it's possible that your Outlook profile or data file (PST) is damaged and requires repair. In this guide, you will learn to fix the Outlook 2016 not sending email issue and repair your Outlook PST using a PST repair software.
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Many users have reported encountering problems while sending emails in Outlook 2016. The Outlook not sending emails issue may occur due to different reasons.
You may fail to send the email if the receiving email address is wrong or there’s no internet connection. However, such issues are pretty easy to fix. You can provide the correct receiver’s email address or check the internet connection.
Some other common causes for the issue include corrupt PST files, corrupt profiles, and corrupt programs. Also, it can result from overly large attachments, especially when they’re stuck in the Outbox folder. Nevertheless, whatever the reason is, you can fix the issue using the methods discussed below.
The reason why your emails aren’t going could be due to a damaged Outlook profile. Here’s how to fix the issue.
You can use this method if you’re connected to an Exchange account.
Alternatively, you can simply create a new Outlook profile. Here’s how to do that:
Once done, you can start using the new profile.
You may encounter the Outlook not sending emails issue if there is a problem with MS Outlook program. If that’s the case, one option is to uninstall and reinstall the program. However, that can be burdensome and there’s a risk of data loss. The safest way is to repair the Outlook program.
Here’s how to go about it:
Your antivirus program may also prevent you from sending and receiving emails. Therefore, one way to fix the Outlook not sending emails issue is to disable your antivirus program. It’s ideal to disable the antivirus entirely and not just turn off the email feature to be sure your antivirus is behind the issue. Try resending emails after that to see if it works. If it does, you might consider repairing or replacing your antivirus program.
If your Outlook data file is corrupt, you may face the Outlook not sending emails issue. You can repair your Outlook data file by using the native Inbox Repair Tool to resolve the issue. Here’s what you should do:
One of the fastest and easiest ways of fixing the Outlook 2016 not sending emails issue is by using the Stellar Repair for Outlook tool. It’s a PST repair tool that can quickly fix the problem if it’s due to a corrupt PST file. The tool helps recover damaged data and create a new file after repairing.
To repair corrupt PST file with the Stellar Repair for Outlook tool, follow these steps:
That’s all. If your Outlook isn’t sending emails because of a corrupt PST file, you should no longer face the problem.
The Outlook 2016 not sending issue may occur due to different reasons. There are different ways to fix the problem as mentioned in this post. If the issue has occurred due to a corrupt PST file, the best way to fix the issue is by using a PST repair tool, like Stellar Repair for Outlook.
Ravi Singh is a Senior Writer at Stellar®. He is an expert Tech Explainer, IoT enthusiast, and a passionate nerd with over 7 years of experience in technical writing. He writes about Microsoft Exchange, Microsoft 365, Email Migration, Linux, Windows, Mac, DIY Tech, and Smart Home. Ravi spends most of his weekends working with IoT (DIY Smart Home) devices and playing Overwatch. He is also a solo traveler who loves hiking and exploring new trails.
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