If you need to increase the number of this limit try the next resolution. Step 1 - The hard limit of recipients for a single email message is 300. Reduce the number of recipients for a single email to less than 300.

Follow the on-screen instructions to update your Office apps. Then, launch your Outlook app, and it should open without problems. If your PC has a virus or malware infection, that may be why Outlook isn’t launching. In this case, run a full virus check on your PC to find and remove any threats.

Below, you will see some of the most common issues that users run into, and what the most efficient way to troubleshoot Outlook is.Running Out of Mailbox Space. …Outlook Crashes or Freezes on Opening. …Recovering Deleted Items. …Search Is Not Working. …View Settings.

Once you’ve changed your password with your email provider, you can update the password in Outlook. See Change or update your email password for more information. If you’ve successfully sent and received email from classic Outlook before, and now Outlook repeatedly asks you to reenter your password, one of two things may have happened. If you’re trying to set up an iCloud account, follow the Outlook repair Support team steps in Add or manage an iCloud email account in Outlook. For Gmail accounts, see Add a Gmail account to Outlook. This option could be useful if you constantly have to wait for Outlook to rebuild its data file when you restart.

Below, you will see some of the most common issues that users run into, and what the most efficient way to troubleshoot Outlook is.Running Out of Mailbox Space. …Outlook Crashes or Freezes on Opening. …Recovering Deleted Items. …Search Is Not Working. …View Settings.

This error may hamper your work and may create other issues as well. This happens because Outlook sometimes blocks unknown attachments to safeguard users’ data. Microsoft Outlook is a great email client, and there is no doubt about it. And just like any other program, problems are bound to happen with the MS Outlook application. I have often seen Outlook users complaining about the abnormal behavior of Outlook. Some say that Outlook hangs on loading profiles, or Outlook keeps freezing.

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