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.

You'll need to acquire a recovery tool designed for bigger jobs. Search "PST Repair Tool" and you'll find many reputable programs who know how to fix troubleshooting Outlook startup issues this Outlook issue. Clear unnecessary files from outbox and trash folder to optimize the performance of your Outlook application. Also, try to use the necessary Outlook features to enhance the performance of Outlook as well as Windows. When you reinstall Outlook, you are removing the current application from your system and then installing it again.

Whether it’s restoring email from encrypted backups or recovering badly broken PSTs, Stellar gets the job done with troubleshooting Outlook startup issues minimal fuss. It warns that once you pass certain limits such as the number of folders or messages, performance can nosedive. If you’re on a corporate network, some attachments might be blocked by server policies. Contact your IT administrator to verify if restrictions are in place and request assistance.

If you can open the original Outlook Data File, you might be able to recover additional items. The Inbox Repair tool creates a backup file with the same name as the original, but with a .bak extension, and saves it in the same folder. There may be items in the backup file that you might be able to recover that the Inbox Repair tool couldn't.

The usual fixes like resetting credentials, reinstalling Office, and clearing cached profiles had no effect. Our goal is to give you the answers to fix the most common issues Outlook users face. Bookmark this page so that whenever you come across an error like your Outlook calendar not syncing, troubleshooting Outlook startup issues or a corrupted file, you'll have a place to start troubleshooting. In case your Outlook PST is corrupt or damaged, you can always look for third-party Outlook PST Repair Tool to fix the issue. Inbox Repair Tool or ScanPST.exe is a free utility provided by Microsoft.

Julia Gulevich is an email marketing expert and customer support professional at Geminds LLC with more than 15 years of experience. Author of numerous blog posts, publications, and articles about email marketing and deliverability. The recipient’s server may send a bounce notification explaining why it could not deliver the message. But it doesn’t happen all the time and you may not even know that the recipient didn’t receive your email. This kind of situation can be very frustrating, especially if the content is urgent or vital.

Then, each item in your calendar folder is checked for known problems that can cause unexpected behavior, such as meetings that seem to be missing. After you've selected a task, you can use the details pane to do things like add more information, add steps, or mark as important. You can view more than one calendar at a time, add other calendars, choose which calendar to display, and create new calendars. You can use the Inbox Repair tool (SCANPST.EXE) to diagnose and repair errors in your Outlook data file. The Inbox Repair tool checks the Outlook data files on your computer to see if they're in good shape. Use the People page to find, view, create, and edit contacts and contact lists.

For more information about working with calendars in Outlook.com, go to Using the calendar in Outlook.com. Select More to see additional actions—for example, an option to print a message. If you want to learn about printing, see Print attachments received in email messages. You might need to set Windows Update to automatically download and install recommended updates. Installing any important, recommended, and optional updates can often correct problems by replacing out-of-date files and fixing vulnerabilities. To install the latest Windows and Office updates, click the link below.

It could be an issue with a setting on the account, or it could be something external that is blocking normal functions in Outlook. If you're entering a password you know is correct and getting a message that says "incorrect password," then you'll want to read this page. The Authenticator app is designed to help you quickly and safely confirm your identity. With the app, an online intruder would be stuck on the first step of verification, because the Authenticator app is awaiting a one-time passcode, troubleshooting Outlook startup issues your fingerprint, another password, etc. The AppData folder hosts a lot of files, including bookmarks and cached pages. This might be slowing down or overriding other commands in Outlook.

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 troubleshooting Outlook startup issues 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.