Exchange 2003 claims user mailbox is full when it isn't.

Posted on 2005-05-11
Medium Priority
Last Modified: 2008-02-01
We are using Exchange 2003 to handle e-mail popped from an ISP provider.

There is a user who is having mail bounced back with the message "recipient's mailbox is full". I checked the his mailbox size and it is only 259, 682 KB. There are no storage limits set. This only seems to happen if he is sending mail internally through Exchange. If he sends to an outside address, they receive the mail and he gets their reply.

The "mailbox full" error message seems to come from the ISP as their mail server address is stamped underneath the message. However, no messages are stored on the ISP server as they are popped to our Exchange server every 15 minutes.

I suppose we could set up his Outlook to pop directly from the ISP, but I can't understand why it's not working with Exchange.
Question by:F-13
LVL 24

Accepted Solution

David Wilhoit earned 750 total points
ID: 13978865
What about message size limits? Are there any set in the Exchange system manager?
LVL 27

Assisted Solution

Exchange_Admin earned 750 total points
ID: 13979057
I have seen in the past where a POP account would give this type of error.
What was happening was that the ISP's SPAM filter had moved alot of SPAM to a folder that needed to be cleaned out.

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

As much as Microsoft wants to kill off PST file support, just as they tried to do with public folders, there are still times when it is useful or downright necessary to export Exchange mailboxes to PST files. Thankfully, it is still possible to e…
In this post, I will showcase the steps for how to create groups in Office 365. Office 365 groups allow for ease of flexibility and collaboration between staff members.
In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…
Suggested Courses
Course of the Month17 days, 9 hours left to enroll

830 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question