I had problems with the email server this week and so I uninstalled it and reinstalled it. That fixed the problems for the webmail clients.
All of the POP3 clients were able to download the backlogged emails except for 1 client. In her case the download stays stuck on "Downloading 1 of 188" etc. The 188 number increments as more emails are received in that inbox.
I have done all the tools in the maintenance section which all completed successfully. I have deleted all the trash and junk and compacted the folders on the client's POP3 installation. The result is that this one client still cannot download her emails.
Any suggestions about what else to attempt? The client is using the latest edition of Thunderbird POP3.
Thanks,
Jim