Troubleshoot Outlook for Windows issues

The default SMTP port (25) may be blocked by some Internet Service Providers (ISPs) due to spam concerns. Currently, you can't use Outlook on Windows to edit calendars that are shared with your Outlook.com best way to fix Outlook errors account, even if you've reconnected your Outlook.com account to Outlook. We're working to make it possible to edit shared calendars in Outlook 2016 for Windows. If you are having issues sending email, this might be due to validation issues with your Microsoft Account.

Solutions to Troubleshoot 'Out of Memory or System Resources' ErrorCheck Resource Usage. ...Restart and Update Outlook. ...Optimize System Resources for Outlook. ...Find and Remove Faulty Add-ins from Outlook. ...Increase the Size of the Memory Heap. ...Rebuild the OST File.Apr 7, 2025

It might be that Outlook is not responding, or it's not loading. Here is how to fix outlook issues relating to connectivity and syncing your email. If Outlook won't open, you can't check your incoming messages or send an outgoing one from your desktop. If you're considering looking for an alternative to Outlook, we offer a swift onboarding experience through IMAP protocols. You can best way to fix Outlook errors even add your @outlook.com email address to Mailbird and not miss out on any of your important conversations.

This happens to accounts that are configured in the iOS Mail app. The issues documented in this section have been reported after installing the recent updates listed below. We're investigating the issues and will update this page when a fix is available. In the meantime, please use the workarounds suggested for each issue.

We are aware that some users may not be able to receive email from Gmail accounts. Although it's not possible at the moment to turn the feature off entirely, you can choose to remove it from your favorites list by right clicking the folder and selecting Remove from best way to fix Outlook errors Favorites. This issue has been fixed for Outlook.com country domains.

The most common problem users encounter when accessing their email accounts in Outlook is "Outlook 365 crashing". In most cases, the issue is caused by incompatible or faulty add-ins. This article discusses some methods for resolving Outlook 365 keep crashing issues. Hopefully, one of these solutions worked best way to fix Outlook errors for you, and Outlook is now stable and operating normally. Corrupt data files (OST or PST) can also cause this Outlook crashing issue.

Some customers may experience a delay when trying to create a new email address, or alias, for their Outlook.com account. This issue has been mitigated and we are continuing to monitor the issue to ensure stability. The root cause was the deployment of an incorrect campaign data file, which led to false positive campaign detection. We have since reverted to the right data file and the outbound email flow has returned to a normal state. We also released a new rule that corrected the wrong campaign verdict for all impacted customers during the incident.

This is one of the more popular culprits as to why Outlook repeatedly asks for your password. There are a number of causes to Outlook not working you can troubleshoot. If you want to learn how to fix Outlook issues involving a frozen screen, here are some things you can do. Those are the most common ways to get back on track when the Outlook search is not working on Windows. Here are some solutions for when the search is not functioning on a best way to fix Outlook errors Mac.

You can set up auto archiving to smooth out some of this issue. You should also keep reading about how to fix another typical outlook issue, PST file issues. To access the calendar shared with your Microsoft 365 for business account, you'll need to accept the invitation from Outlook on the web, iOS, or Android. If you've already clicked the Accept button in Outlook 2016, you won't be able to re-accept the invitation from another Outlook application. The person who sent you the invitation will need to remove your permissions and then send a new invitation.

Using them as your email provider in tandem with your email client means you can enable their anti-spam features, which are superior to Hotmail and Outlook. Look for anti-spam software that also flags websites you visit, enabling you to scan for and prevent online viruses. Every antivirus software is different, so you'll want to look up how to specifically enable Outlook with the software you're using. The easiest way to find out if this is the problem is to temporarily disable your antivirus software and log in to Outlook as usual. If the prompts go away, you'll know it was the antivirus software.

Also, if you placed the corrupted PST file in your In-Place Archive folder, it may trigger an automatic repair attempt. But what happens if these files become compromised, and you can no longer access their information? Not all hope is lost, as Microsoft has some built-in tools to help you recover it, which we will show you how to do in this guide.