Auto-archive, sending and receiving a very large attachment, or running some of the other mailbox tools can all be done in the background. Check the Reset Microsoft 365 login credentials status bar at the bottom of the screen to see if another process is running. If so, wait a short time (usually two or three minutes) to see if Outlook starts working again.

Issue - Too many recipients in Outlook

In this case, you can disable all Outlook integration within the antivirus software. Or, you can disable any antivirus software add-ins that are installed in Outlook. Be aware that if you are connecting to an Exchange Server mailbox, your mailbox or your email messages are already being scanned by antivirus software on the server. The built-in back-off mechanisms in the indexing component of Windows Search or WDS pauses the indexing of Outlook data when the system is under heavy use. The easiest way to let the indexing finish is to leave Outlook running overnight.Additionally, you can reduce performance issues by running Outlook in Cached Exchange Mode. In this mode, Windows Search or WDS searches the local copy of the mailbox instead of the mailbox content on the server.

Run The Microsoft Support and Recovery Assistant

Whether it’s Outlook configuration, software errors, or any hosting-related challenge, our 24/7 technical experts can provide hands-on assistance. In many organizations, Outlook is one of the most common and core programs that are used from day to day. Many businesses depend on it to keep their operations running, and having it break is a nightmare that usually ends up costing lots of money and causing a lot of frustration. Fortunately, with the right Outlook troubleshooting strategies, many of the most common Outlook problems are quite straightforward to troubleshoot.

Resolution - Too many recipients in Outlook

Clear the cache or recreate the Outlook profile if performance is degraded or errors persist. 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. So, we have produced this list of general things to try to resolve your problem in Outlook.

Stop Performing a Send/Receive When Exiting Outlook

Warning This workaround may make a computer or a network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk.If your antivirus software includes integration with Outlook, you may experience performance issues in Outlook.

Here’s how to disable add-ins in Outlook even when it keeps crashing.If you need to increase the number of this limit try the next resolution.Open Outlook in Safe Mode (hold Ctrl while launching) and disable unnecessary add-ins.Check the status bar at the bottom of the screen to see if another process is running.We go above and beyond the average software reseller because we built our business on trust.A lot of times, a user will click on something by accident and change their view and be unsure of how to get it back.

TrustedTech is dedicated to being a reliable resource for all software and technology support needs. Our relationship to the Microsoft Partner Network allows us to provide competitive pricing and authentic software and support, all with a much-needed human element. The maximum number of distribution group members is 100,000 members, and the recipient rate limit is 10,000 recipients per day. 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.

Run Microsoft Office Repair

How to run troubleshooter on Outlook?
Available classic Outlook troubleshootersStart the Get Help app.In the Search bar, enter Set up Microsoft 365 email in Outlook.Follow the steps provided.

If you can't open Outlook, or Outlook disappears or crashes, one of your add-ins may be to blame or you may need to update Outlook. 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.