There's no hard limit to how many folders a mailbox can contain or how many items a folder can contain. However, you might experience decreased performance as the number of items approaches 10,000 calendar items, 10,000 folders, or 100,000 mail items per folder.
Having mentioned the Trash folder, it won't do you much good to delete a lot of large messages if they're hanging out in the Trash folder. You've not freed up any space; you've simply moved the large emails. To delete all the messages in the Trash folder, right-click the Trash folder and choose Empty Folder.
If your PST file is oversized, corrupted, the process of downloading emails in the PST file takes time. Secondly, if your Internet connection is bad and slow, it takes time to receive incoming emails in Outlook.
It's a technological problem. Outlook will automatically store emails you receive in the PST file when they arrive. As a result, Outlook receives emails more slowly if you have been receiving emails for a long time. You should thus look under the “writing to the PST” part to identify the issue.
However, the Outlook mailbox full after deleting the emails error may appear as Outlook does not delete the mail items immediately. Instead, it moves them to Deleted Items or Trash folder. Thus, you must empty the Deleted Items or Trash folder to fix the Outlook mailbox is full error.
If you wanted to send more than 10,000 emails in a 24-hour period, you would need a third-party app dedicated to mass email sending. The other limit is for Outlook maximum recipients for a single email or newsletter. The Outlook recipient limit for a single email is 500 people.
Emails can take up tons of space on your Android operating system. If you keep thousands — or even hundreds — of emails around, then it's time that you clear a significant amount of space by deleting these emails in Gmail.
Make sure you're connected to Wi-Fi or mobile data. If you're on a slow connection, it could take a while for your email to send. If you sent the email from an email client, like Apple Mail or Outlook, try sending it from mail.google.com or the Gmail app instead.
There are multiple factors that can cause Office 365 slow performance. The reasons can be issues on a client's computer (hardware and software), network or internet connection issues, and issues on Microsoft's side (software updates, issues in a datacenter).
Use Outlook Cleanup Tools Feature
Go to the "File">" Info">" Cleanup Tools">" Mailbox Cleanup" in Outlook. Choose "View Mailbox Size", Find items older than", "Find items large than", "View Deleted items size", "Empty Deleted Items" folder", "Empty Conflicts", or "View Conflicts Size" to execute your desired operation.
Archiving your emails provides an easy, reliable way to clean up storage space while still providing you access to all the emails you've ever sent and received.
By default, Outlook creates a copy of every email you send, including any attachments, and stores it in the Sent Items folder. These emails and any attachments are taking up your mailbox space. This feature can be turned off by doing the following: 1.
Simply, go to File > Info > Tools > Clean Up Old Items. Additionally, there are two other options on that menu that can help you clear that clutter. Mailbox Cleanup will give you more options, such as finding emails older than 90 days. Empty Deleted Items Folder will permanently delete items in the Delete Items Folder.
Email delays can be attributed to the size of the email and its attachments, network latency, or occasionally issues with spam/virus scanners getting backed up. Most often, it's a case of sender or recipient client delays. Many mail clients only communicate with the server to send or receive new mail every few minutes.
Going back to your concern, listed below are the possible causes of mail delivery delays: Email traffic on the server causing the sending/receiving of emails to travel much slower than the usual receiving time. Mail servers may be undergoing maintenance, or there may be a service outage.
The benefit of archiving an email in Gmail over deleting it is simple — sometimes you want to retrieve important information from a past email. Instead of deleting it forever, you can get the best of both worlds by simply hiding it by archiving it.