newbie question on a dovecot buffer

[Richard Bown]

Hi
apologies for what will seem a daft question
I'm getting problems with my mail provider who is using dovecot.
I've loaded Dovecot on a 8 core ARMHF SBC version 2.2.33.2 on Ubuntu 
18.04. The SBC is headless. and the load looks very light and only needs 
to store/cache 4GB of mail

Can I use Dovecot as a buffer between my mail providers Dovecot servers
and the several IMAP mail clients on my own network ?

ie,  so Dovecot would mirror the mail on my account with my mail 
provider, So my local dovecot server downloads mail and caches/stores on 
the local SBC and all the local users use IMAP from that, instead of 
from my mail provider.
Can I import the same directory structure as help on my mail providers 
server ?
I'm trying to avoid the timeout problem I get when using IMAP from my 
mail provider.
Can it be done ?
and can you withstand the questions on configuration, I haven't used 
Dovecot before so its a vertical learning curve
Thanks
-- 
  Best wishes /73
  Richard Bown

  Email : richard at g8jvm.com

  HTTP  :  http://www.g8jvm.com

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