Similar to our earlier suggestion of repairing Office (see #3 Repair Your Microsoft Office above), perform the same steps except choose to Uninstall. Be aware that you may need your product key if you received one. If you need to update your email's POP or IMAP account settings, please go to POP and IMAP account settings for more information.

There’s also an option to send a different message to senders outside your organization. As of March 2024, you can still use the older Mail and Calendar apps on existing devices. However, Microsoft plans to phase them out by the end of the year, making the new Outlook 2024 (Outlook for Windows) the default email client. In most cases, your account can be recovered and mistakes can be fixed.

If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues. The maximum number of recipients for an individual email through USNH IT mail servers is 300. If you try to send to more than 300 recipients in a single send, you will get an error similar to "This message wasn't delivered to anyone because there are too many recipients. The limit is 300." No matter how well written add-ins are (and even Outlook itself), there will always be the occasional Outlook problem that doesn’t seem to go away or may not be related to add-ins at all. You can read how to fix your Outlook problem on the internet, but sometimes the suggestions don’t work for your specific case.

There are three steps you can take to try to get Outlook working again. If you are having problems with Outlook, there are a few things we can help with to get you back to sending and receiving your email. Step 1 - For both Windows and MacOS users, Microsoft Outlook has the ability to recover deleted items Outlook Desktop App. If Outlook shows an error like "Cannot open attachments", this could be due to unsupported file formats, outdated Outlook versions, corrupted attachments, or security restrictions. Configure your antivirus software to exclude Outlook resolving Outlook not responding files or processes from real-time scans to avoid interference. Many users report common Outlook problems on Microsoft forums and support platforms.

In some specific cases, we observed that the problem no longer stayed after deleting the Outlook App Data folder. Thus, you can try deleting the Outlook App Data folder and check whether Outlook functions in your case; follow the below process. After the scan is complete successfully, try to open Outlook 2016 again and check if it throws the same error message or is now working perfectly. Now, launch Outlook 2016 again and check if the issue persists or not, and if it does, you may follow up with other workarounds given below. You can choose to repair the program both online and offline, whichever solutions suit you best.

Update the account information with the one you received from your email provider or from the POP and IMAP server name reference topic. If you can't choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen. There are three steps you can take to try to get Outlook working again. Outlook will configure most settings automatically. If Outlook shows Disconnected at the bottom of the status bar, this issue may occur due to improper Autodiscover resolution. Run Test E-mail AutoConfiguration to confirm Autodiscover is resolving to Intermedia servers which helps Outlook to connect properly.

Start classic Outlook in safe modeIn Windows 10, click Start.Type Outlook /safe, in the Search programs and files and then click OK.Close and re-open Outlook.If the issue is resolved, you can keep working, or if you have time, take the following steps to find out what COM Add-in is causing the problem.

After finishing one step, if it does not resolve the issue move on to the next. This option could be useful if you constantly have to wait for Outlook to rebuild its data file when you restart. Microsoft Outlook is one of the most widely used email clients globally, especially in professional and business environments. Outlook also comes with strong built-in security features, making it a reliable choice for managing communication and workflow.

To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? Use Tasks to create, manage, and track things you want to get done. You can learn more about the new and classic tasks in Outlook.com by going to Use To Do App to manage tasks in Outlook. Start typing in the search box to find a contact or contact list. Each message also has a mini toolbar when you open the message in a new window.

Add an Outlook.com alias to your account and send email to Gmail users using that alias. For more information, go to Add or remove an email alias in Outlook.com. If you can't choose any of the menu options, type inside an email message, calendar event, or contact, Outlook may have frozen.