Judy Gleeson MVP - Outlook said:
Make a .pst file File | New | Outlook Data File and file stuff
from
the Mailbox into that folder.
Probably won't help the OP. Their mailbox is probably getting full
because they are leaving the messages on the server, so yanking them to
Outlook and then moving into another data file won't help. The problem
isn't in Outlook or its message store. The problem is on the mail host
because the mailbox is full and *senders* can't get more mails into the
mailbox on the recipient's server. If the user was not leaving messages
on the server and was getting them into Outlook then they would be
getting downloaded AND deleted from the server so the OP's mailbox there
wouldn't be full. The problem is how the user is handling (as in NOT
handling correctly) their mailbox on their mail server.
The problem isn't in Outlook's Inbox or its message store. The message
the senders are getting is status returned from the recipient's mail
server. It doesn't matter if the recipient has Outlook running or not
or if the recipient is even connected to their mail server or not. The
OP's mailbox is full. No more room for more mails. Since the user is
using Outlook, they either haven't used Outlook to yank their mails from
their account or they configured Outlook to leave messages on the
server, or maybe they configured Outlook to not download messages larger
than some maximum size (which Outlook doesn't download and delete from
server unless the user then manually marks and downloads the marked
items). The problem is bad management of the user's mailbox which is a
problem up on the mail server.