Retrieve all messages from AOL

Hello,

I want to retrieve all messages from the horror show that is AOL Mail.
I've attempted to use getmail with SimpleIMAPSSLRetriever and
SimplePOP3SSLRetriever.

When I use SimplePOP3SSLRetriever, the first 2000 messages download. Then,
I start getting

Retrieval error: server for SimplePOP3SSLRetriever:(username):995 is
broken; offered message (message ID) but failed to provide it.  Please
notify the administrator of the server.  Skipping message...

When I use SimpleIMAPSSLRetriever, small folders download OK, but large
folders produce an error after a larger number of messages download. I am
not sure of this number, but it is over 2000. The error is

Retrieval error: server for
SimpleIMAPSSLRetriever:(username)@imap.aol.com:993 is broken; offered
message (first number)/(second number) but failed to provide it.  Please
notify the administrator of the server.  Skipping message...

If I start the POP3 getmail again, it seems to download the same 2000
messages. The same is true for IMAP. Is there any way to resume the
download from where it left off without deleting the messages from the
server?

- Compilebunny