Why Do I Get “Mailbox Does Not Exist” Bounceback from a Brand New Mailbox

More than 128 business emails are sent and received per day, and this number has been increasing by 3% over the last 5 years. Simply put, business professionals have their inboxes filled with emails – customer queries, partner interactions, internal communications, and the list goes on. To manage so many emails, email users create different inboxes. However, a lot of email users face the “Mailbox does not exist” issue, regardless of the email client they use.

In this post, we’ll discuss why you’re getting the “Mailbox does not exist” error, and how you can resolve it.

What is a Mailbox?

A mailbox refers to a destination where the email messages are delivered. It’s similar to a letter or post box installed outside a house. 

Several email clients, including Eltris, allow you to set up multiple inboxes. Creating a new mailbox is effortless. All you need to do is head to your administration console and look for Mailboxes. There, you can look for Mailbox options and add a new mailbox.

You can then Customize the inbox settings by adding details like “Section Name” and “Page Size.” Once you’ve set up your inbox, save the settings, and you’ll be good to go.

I’m Receiving “Mailbox Does not Exist” Bounceback

When you create a new mailbox, you’ll get instant access to the webmail, along with password changes and additional features. But the setup process of a new mailbox may take some time. While the time may differ in different email clients, it generally takes 15-45 minutes for a new mailbox to become functional. 

So, if you’ve recently created a new mailbox and you’re receiving the error, don’t panic. The chances are that the system is configuring the new mailbox. Wait for 30-45 minutes to see if the problem resolves. If it doesn’t, contact your email service provider.

Other Solutions

If you’re encountering the “mailbox does not exist” problem and the customer support is taking too long to respond, you can try these steps. Email clients have different processes, but the core is almost the same every time. Just for your reference, we’re taking the example of Office365. 

In Office 365, assign the Online Exchange license option to the new mailbox and see if the problem resolves. When you assign the license option, it facilitates the creation of an Exchange mailbox. You can then configure the limits in the connector.xml file.

Inbox Missing from One Location

A common hurdle some email users may face is the new inbox appears in on-premise mail but not in the IMAP inbox. So, if you’re using Office 365, the new inbox may show up in the on-premise inbox but not in the Office 365 mailbox. 

In that case, you’ll need to update the Exchange GUID in on-premise. This process, however, is quite technical and requires expert assistance.

The Importance of a Reliable Email Client

It’s worth mentioning that “Mailbox does not exist” is not an uncommon issue. A lot of email users face this hurdle, and a majority of them rely on the support service to overcome it. Therefore, it’s critical to pick an email service provider that excels in customer support and service.

Using a reliable email client service like Eltris will give you instant support and also helps you to setup your email account with easy steps.

Wrapping Up

Creating a new mailbox might seem instant. All you need to do is add a new mailbox, customize the rules, and start receiving emails. But the process isn’t instant. Your email client needs time to configure your mailbox to make it active. 

So, it usually takes 30-40 minutes to become up-and-running. But if it doesn’t, get in touch with your email provider’s support team. Check Out Eltris for seamless mailbox creation with best-in-class customer support.

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